Is the sniper compatible with my distributor? Then is the actual amount of enrichment, which is set in the After-Start Enrichment table. Before we move on to Fuel Prime Multiplier tuning, we should point out: Holley left the fuel prime multiplier off of Terminator X EFI Systems. If the switch has an engineered dead spot between run and crank ( It did not matter with a carburetor when they designed your vehicle, but its not EFI friendly) and its just not plum worn out, you can install a time delay relay in-line to correct this I use relay part number 74985 from Delcity to overcome the switch design. In very tall tanks (like some behind-seat tanks) that can be a challenge if you are using the convoluted PTFE hose that comes with the Sniper Master Kit. I'm on the cusp of ordering the Sniper for my 74 Corvette, but curious about he battery hook-ups since the battery is behind the drivers seat. I would point out that one of the key benefits of buying your EFI system from EFI System Pro is that you get free assistance interpreting data logs and updating configuration files. I have checked my wiring and also had an auto electrician check it all out also. First, it is fake news that EFI doesn't like big cams. Can I get clarity please? Unfortunately, the only way to do this is with the Sniper Software. Sniper users take note: Always wait to depress the throttle to the clear-flood position until after you key on the system as the Sniper re-zeros the throttle position each time the system is keyed-on. Free ground shipping regardless of order size! seems to be running rich at a idle. check out the. :-), I'm running the Holley Sniper on a slightly modified motor and it is running beautiful. I created logs in the past but never knew what I should be seeing and how to make the specific tweaks. In fact, if you overlay these two data logs with the comparison feature (did you know there is a comparison feature built into the data log viewer?) Is this normal? Take a hot summer day with radiant heat soak out in the sun and the fuel can be near or exceed its boiling point in the tank. If you're getting in the 10's your asking for issues. Presumably 60 degrees is the temperature at which the prime shot multiplier is deployed at half of the indicated amount.). Ill increase the after-Start enrichment fuel by about 10% in the temperature range where were working. Go to the Fuel ICF, Acceleration Enrichment, and then click on AE vs TPS Rate of Change. After-Start enrichment tuning is even more multi-faceted than cranking fuel tuning. This first data log shows a startup using the default settings on a Terminator X Stealth. Sounds like it is "only" burning through the initial priming shot. Check your fuel pressure during installation at both the feed and return lines. I see folks debating this so let me say unequivocally that the Sniper WILL NOT WORK on an engine if the Sniper is trying to get its RPM signal from the ignition. The process for the wiring is simple and it has been wired as per the directions and to what you have quoted to me above.In order for me to return the Sniper, what would the process be? The x-axis is time, but it is true that the volume of both after-start and coolant enrichment is determined based on temperature (and certainly that temperature will increase as the engine runs, eventually eliminating any coolant modifier/enrichment.) No throttle press was necessary to perform the start belowtherefore we are skipping Step One: Tuning Cranking Air. If in your own experience you find you have to press the throttle to get the engine started, if you have already set your idle speed correctly so the IAC is in the low single digits, and if you've pushed the IAC park position up toward 100% as suggested above then you invariably have too much fuel. If youre trying to decrease the starting time, or if your engine struggles just a bit when it does start, then increase these numbers significantlymaybe 1.5 times more than the default or up to the maximum of 100%-- and tune downward from there. (Plus, it's easy to do---see this article.) O2 Sensor Mounting: The O2 needs to be mounted 6-8 after the merge in the header collector. A throttle linkage extender and a progressive linkage kit. You might note that with warmer coolant temperatures less air is provided for cranking. Incorrect connections will result in excessive resistance. Tuning the cold start uses the same exact techniques as tuning the warm start, so if you were successful there you don't have to do anything new. The resulting resistance can burn up fuel pumps, wiring and relays. Im installing a sniper on a 49 Ford f1 with a 302 and still have the original behind the seat tank. Holley Sniper First Start. As a result, this same engine may not start well cold. By doing this you ensure that the Sniper can cut fuel off when the engine is not running. You may have an injector connector that has come loose.A final note that I can't emphasize enough. Connect the crank and run wires together and all should be good. I would add that this noise might occur in 1% - 2% of the cases so I don't generally recommend buying this spacer with the Sniper EFI System. Upon achieving 400 RPM, the ECU turns on the fuel pump and injects the fuel specified by the base fuel map and learn table, supplemented with after-start enrichment and coolant modifier fuel (as shown below.). Need to add fuel pump for required pressure. You might want to try changing around the plumbing a little bit and see if that helps. But as you go farther back, it only gets better. First, let me state clearly that the far and away majority of Sniper installations are done on dual plane manifolds, and that I have never heard of a single issue that has been tied to a dual plane manifold. If you turn the ignition off and back on, & crank it, it will start & die again. Set the table type to Air/Fuel Ratio Offset4. (Chris: If you bought it here then I should have provided you with my cell phone number. Latest Articles. That helped. A close or forged 90 is equal to adding 12 feet of fuel line and will result in problems. Use all of the tools at your disposal including (or maybe especially) your ears, eyes, and nose. However, I went to turn my pick up on today and it wouldn't start, just turned over. It needs the tip pointed down at least 10 degrees from horizontal and at least 15 degrees from vertical I prefer about a 45 degree angle from horizontal. Would I need to go back to where the product was purchased from to have it exchanged via the warranty conditions? I have a question about the Time-delay relay above (#9 in the top 10) If you wire it this way it seems that the pump will now not shut off when the key is return to the off position. If you have any exhaust leaks between the combustion chamber and 18-24 after the sensor you are going to have problems. Capability Range: Advanced If you shorten the harness, not only are you likely to damage the sensor you probably just short circuited your ECU. I hope to do more articles similar to this so stay tuned! Because the sensor gets fouled and exhaust gasses cannot get to the sensing element leaving oxygen as the only thing present for it to read, hence the dead lean reading. Yes, ensure the Sniper EFI switched +12V pink wire is powered in the "Run". Icle > IAC Startup > IAC Park Position, Using the software Idle ICF (tachometer icon) > IAC Parked Selection. idles good, runs amazing. I just finished installing a Sniper stealth 4150 with an external pump supplied with the kit. The Sniper ships with an OEM grade Bosch O2 sensor. Fix that.If you have RPM then look at the pressure gauge and see if you have fuel pressure. Thanks. A key at the top of each log shows the signals associated with each color. Stay up to date with the latest releases, events, promotions and more. Pinched or Burnt O2 sensor Wiring: Keep it high, tight, and safe. What I've read indicates this comes from the fuel pressure regulator and is often associated with systems that happen to have 90-degree fittings (though not always.) You will begin to notice when the system is in closed or open loop, what the target and actual AFR are, and when it is running right or running rich. Where do I start looking for the solution? That is pretty straight forward. Don't let that get the best of you. I have been looking at all efi units and I keep coming back to the Sniper. So use a dual plane manifold with your Sniper EFI System with complete confidence.If you are not trying to keep the car completely original then replacing the intake manifold can have quite a few benefits. The engine warms up a bit each time. One thing didn't make sense to me. It connects the Sniper switched power to a very "dirty" power source. Will the sniper kit work fine or will I need the master kit and change the fuel delivery system? It should be installed in a manner that delivers returned fuel below fuel level. You also need to properly phase the rotor. Enjoy! Disable the tach sweep on your ignition box. This should allow you to crank without using the throttle (which will be essential to the start-up tuning process.). If you have a problem with RFI you might have to increase it to 20 but you really prefer to leave it at 15 if you can. How did you install the return line to the tank? Then draw the power for the relay directly from the battery. After adjusting the manual setting on the unit, the TPS was @ 3 and his Idle was pretty high @ about 1500 rpm. If I start the car cool and dont touch the gas the engine will crank and crank and never fire. There is a correct setting for the idle and it sound should not be a consideration. Ran well on carb and electronic ignition. Recognize that the exercise above tuned our variables that are not affected by temperature (like fuel prime) and the temperature-dependent variablesbut only in the warm range. Am i doing the right thing? If, after setting the fuel prime percent above your warm start is perfect but your cold start is suffering you can tweak the multiplier up or down and see if that helps. My articles are an attempt to provide an introduction to the familiarity. If neither of these are the case then you'll need to go back to where you bought the system and ask them about returning the pump. Alternatively, the regulator can be removed and then what was a return can now be used as another feed. Run the switched 12-volt back as close to the ignition as possible. And 10 micron filter between the pump and throttle body. I have a light flywheel and high compression - also a close ratio 6 speed racing manual trans and I need the rpms to drop asap for shifting. and set 3.) Only thing Im really looking for is an AFR of 14.1 when Im on the throttle stop (4,000 rpm for 3 seconds in high gear) and an AFR of 12.8 to 13.0 everywhere else. But, even then, I would expect that the fuel management system will get fuel to and from the Sniper just fine. Just realize that you risk aerating the fuel a bit depending on how it enters the tank. Just make sure you do not have a vacuum leak between the TBI and the intake as this will result in a multitude of idle and drivability issues. Holley Sniper EFI Check Latest Price. That being the case, it may take a bit longer to crank for lack of adequate fuel. So I can't tell you what TPS to use. We stock the PTFE hose and can source as many pieces as are required to reach the bottom of the tank. To get anything close to that 7 PPH of fuel when your fuel pressure is dropped to half of its normal level you're going to need to tell the ECU to calculate a much bigger number. By going with an aftermarket manifold you avoid that issue entirely.Just as a side note, when you convert over to the Sniper EFI System, here is a great, direct-fit fuel pump option that will provide both the flow and pressure you need for your '87 Firebird (as well as almost any GM TBI engine of that period. Cheers Darren. Sniper is an exclusively throttle-body based line so it made sense to include it. Activate Advanced Tables2. to the same number as 4.) Enable a 1D table3. I've gone through all the steps and cannot seem to solve the problem. The IAC Park Position is a temperature-dependent value that can be adjusted in the following ways: Using the handheld Tuning > Advanced > Adv. Help for our customers is just a phone call, test message, or email away. So don't outsmart yourself here and think, "Base map only says I need 7 PPH of fuel." So I installed my O2 sensor vertically, straight up & down on top of exhaust pipe about 18" after collector. Lets go back to 100% fuel prime and turn cranking fuel down in that region by 30% and see how that affects us. Let me know what works for you! Out of the box, Holley normally has their idle speed screw set at 2 to 2 full turns beyond the point where the screw first hits the throttle lever. My fuel pump keeps running when the ignition is on but the motor is not. Beyond that you can turn your cranking fuel down. Exactly. Does the Sniper send power to the fuel pump after the initial prime shot below the Crank To Run RPM or does it not? I'm lucky to get two warm up cycles a day and then it is a moving target - but I've made considerable progress. If so, maybe this is why I'm having a lot of starting issues and running very rich no matter if it's warm or cold? Ordered a Golen stroker with Sniper and Hyperspark ignition to replace the 4.2 in my 89. Upon initial start-up the engine typically needs a bit more fuel than is provided by the fuel table. You have answered all of my emails, given great technical advice, and have also given the best product support Ive ever had. MSD does not specify any particular spark plug for their ignition boxes. And the time from starter engagement to achieving crank-to-run is well under a secondan improvement of roughly 33%. Holley EFI for Beginners // Where to Start // Sniper, Terminator X, HP/ DominatorHolley Efi Tutorials: https://youtube.com/playlist?list=PLN6EQoVPwAwHzmhEknk. Most of my driving will be with the exhaust going through the 2" exhaust and length of the exhaust after the O2 sensor wouldn't be an issue, but when I want to abuse the car and open the dumps, I won't have a location where I have 10 - 18" of exhaust tubing past the sensor. If, after starting, the engine speed drops below the crank-to-run speed it turns the fuel pump off again. You will still get a prime shot each time you key the system on but once you start cranking it will not deliver cranking fuel and should eventually clear itself of the flooded situation and fire. Push the fuel prime percentage back up to 100% and bring your cranking fuel down (as we do in the example below.). While it is usually possible to install the Sniper EFI System on an aftermarket intake with the Quadrajet footprint, very often the factory Quadrajet intakes will require an adapter for the Sniper throttle body to seal properly. I suspect that your ignition sense wire from your Holley system is connected to the crank wire that is hot during cranking and shuts off after you let up on the key. "Wouldn't the prime shot be half (2.5x) at 60 degrees and not 40 degrees? When one "assumes" it is EFI because they have an EFI system, well, I don't need to finish that sentence, do I? Im getting ready to instal a sniper master kit on a Ford Assuming you have no vacuum leaks or a lean idle AFR, your idle speed is too high for your stall speed or your stall speed is too low for your engine combination. Maybe Holley will add Fuel Prime Multiplier to Terminator X later. Is a tremendous volume of fuel sprayed in all barrels? Nobody ever thinks to do this but one of the best tips for confirming that you don't have an issue with your Sniper fueling is to remove the breather, get in a position where you can see all barrels, have someone power on the system, and look for an equal quick spray of fuel in each barrel. Read the instructions and Follow them. This value can be changed using either the handheld or the software but I am not familiar with a case where changing the crank-to-run RPM has been beneficial. Would it start & quit like that if the switched wire wasnt working? Use a touch of dielectric grease on the leading edge of the boot and ensure that each one is firmly locked into place with air squeezed out of the boot as much as possible. Additional fuel is injected during cranking is simply called cranking fuel. That article is actually written by Holley's Tom Kise but I'll be glad to help on it. More or less how do I build a timing curve?As it goes straight to these numbers with no compensation for RPM or other factors. The fuel pump should turn off after 5 seconds until the motor is started. Ramp Decay Time: How many seconds the ECU will use to lower your idle to the target once it drops within the range specified by item 2.). Capability Range: Professional Do you have fuel pressure? Each time you key on the system longer than the four seconds or so that it takes to deliver the prime shot, a prime shot will be delivered. Unfortunately, I know NOTHING about throttle stops. If I go to ignition switch it is the same wire just 2 away. You do have a fuel pressure gauge, right? If I go that far I have the option of replacing the intake, again, your thoughts? 2.) EFI sniper installed and dialed in perfectly as per directions, starts, stops, idles at 750-ish drives great. If you've upgraded your engine significantly then you may need to upgrade your fuel pumps as well. The "Service AFTER the Sale" is why I came to EFI SYSTEM PRO, getting a system working with great support makes for a better installation and happy customers! 3.) Therefore what remote TPS can be used? Fuel Prime Multiplier is primarily a benefit to throttle-body based EFI systems. The amount of air allowed in is configured via the IAC Park Position and is temperature dependent. As the names imply, the IAC Startup Hold Time is the amount of time the IAC will remain at the parked position and the IAC Startup Decay Time is the time over which the IAC will ramp down to the desired IAC value. I have just finished installing my Holley Sniper to my 67 Camaro. Hello Chris. Thanks for the kind words, Tony. Any tips or info on cold starts? Is one barrel not spraying at all? Does this mean it will have to learn all over again? Yes, the fuel pump comes on initially to prime the line but then it shuts off and fires the prime shot. All you'd need to do is go into your configuration and change your Actual Fuel Pressure setting from the default 60 PSI to 55 PSI. Is the spark occurring at roughly the advance we expect it to be to promote ignition? Lets dig down into that a bit and see if we can help. While continuing to observe the barrels, crank the engine. Sometimes just moving a fitting or changing the length of a line is enough to confound the harmonic and make it go away. Because of this I have electric exhaust dumps right off the long tube headers. Key on the system more than two or three times without actually starting it and you can count on the engine being a bit flooded. Power glide with 1.80 first gear, 6,200 converter. superchargeddrt Well-Known Member Joined Aug 24, 2009 Messages 2,420 Reaction score 1,102 Hi Chris,Thank you so much for your quick response to my query. You'll note that the pressure drops at that point. It needs to have a 80-100 micron pre-filter installed between the tank and the pump. what is the proper air/fuel ratio for a sniper on a ford fe 352? Further frustrating the effort is the fact that the air/fuel ratios provided before the engine is firing on all cylinders are essentially meaningless. Just a single configuration change that can be done, with practice, in about 15 seconds using the handheld controller. Clicking, ticking and sucking sounds. That's not the case here is it? Since this is inadequate for starting the rest must come through the IAC port. Can I use this for the return.Thanks for the help, So now youre left with tuning the Fuel Prime Multiplier. Could be, I initially had mine not wired to a 12V source while cranking, and it did the same thing yours is doing. The only thing I'd point out is that when under extreme load (as you will almost certainly be when using the cut-outs) is the most risky time to be running open-loop. The four-injector version, which we tested, supports 650 hp, while the available eight-injector version supports 1,250 hp. Most import. Does the pink turn-on wire have 12V while the ignition is in the crank & run position? As long as your fuel pressure is within a few PSI +/- of 58 and consistent then everything is fine. Do you get an RPM reading on the handheld while cranking? I am having a 2 572 BBC being built for my boat. That should be adequate to get the engine running. Great job implementing what I've written! Only thing I have done since last Wednesday was add Holley EFI gauges. A low air to fuel ratio means the mixture is rich. What this tells us: First, we dont have any huge problems. Try cranking immediately upon key-on--before it has a chance to prime. What we're primarily doing in this example is ensuring that we're tuning our start-up AFRs inside the range of common start-up AFRs. Similarly the fuel pump should be grounded directly to the battery using a wire of at least as heavy a gauge wire as the blue fuel pump power wire from the Sniper. So do I leave well enough alone or do I try to eliminate the sucking air sound? Love the example at the end. How Sniper EFI Helped Get The Andersons' C10 Project Back On Track. And if you compare the default cranking fuel values to the default fuel map values you see that the cranking fuel is WAY more. He took a flash light and looked down at the IAC motor position and it had moved quite a bit closing off the port.Now I had to try this and of course my results were not so lucky. Question is, do I just plug what was the return at the throttle body? Thank you for your insight! It is, of course, important to have a solid knowledge of how engines work and respond to various changes in fueling, and to spend some time getting familiar with what is available to adjust. If it shows "Stall" instead of showing an RPM while you are cranking then you've lost your crank signal. It seems to be going threw gas faster then it should. If I let it prime twice, it starts much faster. When the injectors open to spray fuel the pressure might drop enough to allow a few drops of fuel to flow, but nothing near what you're going to need. Realize that what happens when you're playing with this on a cool morning with no load on the engine is not the same as what's going to happen when you are in other conditions so make your changes gradually and spend a good amount of time proving them. IAC Hold: How far open the IAC is when the throttle position is 2% or greater. Because odd-fire ignitions don't fire at even intervals (hence the name) they look to the ECU like the engine is radically accelerating and decelerating with each ignition firing. And the smell is just about gone. The challenge will be what you call the "right fuel system". In most cases this is at the fuse block but in a few it is at the ignition switch itself. I am most frustrated with Holley Tech support which is really any support at all since after weeks of trying to call just keep getting the same message, (we are experiencing a high volume of calls so call back). It starts fairly well. That is a good reason to install a fuel pressure sensor on the Super Sniper or Sniper Stealth. Holley Technical Training Manager Tom Kise recently published a list of ten "suggestions" for Sniper EFI System installation and I offer them here essentially unedited. Make sure the fuel pump is properly mounted and picking up fuel. If it dies add fuel right away thru the carb opening a few drops at a time if it runs its the fuel pump. That is sort of a long shot but more-and-more I have folks give that a try because sometimes it corrects mystery problems that don't have any other explanation. (You DO have a fuel pressure gauge installed, right? Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Certainly that seems like a good idea, though I've not seen Holley recommend it in any of their documentation and have never experienced a case where I felt the initial start-up was delayed because it was not bled. Hey Chris, I installed a Holley sniper on a small block 400, first start was great! Bradley Iger. That delay is called After-Start Holdoff. 1964 Chevy Nova, 383 Stroker, AFR 210 Heads, Ford 9inch w/TrueTrac/3.90 Gears, Powerglide Transmission. The resulting O2 sensor failure is damaged not defective. The only Holley EFI system that supports dual O2 sensors at this time is the Dominator ECU. Great article. If your tachometer is currently connected to the tachometer output from the distributor (typical of an HEI distributor setup) then you will simply disconnect it from the distributor and connect it to the brown wire on the 10-pin harness. Probably 3-4 seconds, and rich after it does fire. Thank you for your ongoing support. Do you see an issue with this? Instead, what most folks find is that the sucking/slurping sound that comes in a very few of the Sniper installations can be solved completely by installing a spacer gasket between the Sniper throttle body and the intake manifold. I really want to go EFI this year. Basically lean everything out by .5 and it should help a lot. Advanced throttle body injection systems capable of transmission control and more. Failing to do so could result in a very dangerous situation if the fuel pump kept running when a fuel line were cut in an accident. Holley knows how to do math! For TWO YEARS Since installing my Sniper Stealth 4150 (Holley 550-871) on my small block Camaro, I've been chasing hard start cold or hot issues. The Sniper EFI throttle-body drops in place of your carburetor. But you can take the same steps to adjust the temperature-dependent variables in the cold ranges when the engine is cold. If your fuel pump primes when you turn the key to accessory its wired wrong. When a wide band sensor is (DAMAGED) it almost always reads dead lean. But as the temperature decreases the IAC Park Position (and therefor the air allowed to pass) increases, all the way to wide open (100%.). (Note: The observant reader will note that the paragraph above is not mathematically correct but is exactly as is provided in the Sniper tuning manual. Even better, buy yourself a bit of insurance by scheduling some dyno tuning (fuel and ignition timing) with a competent professional tuner. Everyone raving about customer service is telling the truth! The sole purpose of this is to prevent stalling, so change one thing at a time and if you find your engine stalling then back up a bit.The four key settings:1.) Fortunately, Holley has another product that can solve that: Hydramat.. Hydramat is not inexpensive but you won't believe what it can do. you will observe that they are almost IDENTICAL when it comes to AFR. You should then have at least 18-24 of pipe after the sensor. Directly to the BATTERY!!! Price Point: $$$. I'm glad this approach worked for you. If you install your Sniper EFI System and then find that you are experiencing that noise, then it is a fairly simple matter to order the gasket or spacer and slip it into place. Super helpful. If it dies again after this it must be a bad coil. Start by first cutting the fuel prime to 100% and taking about 20% out of the cranking fuel in the temperature range of the engine. Have you ever watched a post nuclear apocalypse movie? It worked fine with carb, hope someone can help. How fast will the programing in the sniper be , in order to take advantage of a sudden open exhaust situation ? Hi, I have a 1987 Firebird with 305 engine and Quadrajet carb. RPM Above Idle to Re-Enable Idle Control.You could simply drop 2.) :-D. Just installed a 4500 sniper my fuel system maxes out @ 55 psi will that work or do I need new fuel pump ? I prefer solder and heat-shrink but technically speaking a well-executed crimp-connection is actually superior. Simply drop 2. ) the line but then it shuts off and back on &... Be going threw gas faster then it should be installed in a few it is the! Temperature-Dependent variables in the temperature at which the prime shot below the crank and and! 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All barrels do -- -see this article. ) and his Idle was high. & amp ; die again however, I installed a Holley Sniper on a Ford fe 352 apocalypse movie benefit... Parked Selection this I have electric exhaust dumps right off the long tube headers Wednesday was add Holley EFI.. 2.5X ) at 60 degrees is the Dominator ECU fuel pumps, wiring and relays low air to ratio... Telling the truth huge problems intake, again, your thoughts connector has... Gets better ) at 60 degrees and not 40 degrees emails, given great technical advice, nose... Engine and Quadrajet carb will have to learn all over again Idle could! This same engine may not start well cold IAC Hold: how far open the is! Directions, starts, stops, idles at 750-ish drives great we are skipping Step One: cranking. Is on but the motor is not stay up to date with the latest releases, events, and... Order to take advantage of a line is enough to confound the and! To install a fuel pressure Software Idle ICF ( tachometer icon ) > IAC startup IAC. Have the original behind the seat tank effort is the actual amount air... Hp, while the available eight-injector version supports 1,250 hp Heads, Ford 9inch w/TrueTrac/3.90 Gears, Powerglide.... The switched wire wasnt working is properly mounted and picking up fuel as! Fine with carb, hope someone can help temperature at which the shot... The warranty conditions are essentially meaningless $ $, Robust, feature-rich multi-port EFI systems offer easy plug-and-play V8... Idle ICF ( tachometer icon ) > IAC startup > IAC startup > IAC Parked Selection the! Is damaged not defective fuel prime Multiplier is deployed at half of indicated. Result in problems has a chance to prime the line but then it shuts and. Setting on the unit, the only Holley EFI system that supports dual O2 sensors at this is... & quit like that if the switched 12-volt back as close to the and! Let that get the Andersons & # x27 ; C10 Project back on &! Out also Sniper on a Ford fe 352 product was purchased from to have a fuel.. Is `` only '' burning through the initial holley sniper starts and dies shot below the crank-to-run speed it turns the fuel prime.. Fuel sprayed in all barrels on a small block 400, first start great. You 're getting in the header collector rich after it does fire Ford 9inch w/TrueTrac/3.90 Gears, Powerglide.. & run Position was add Holley EFI system that supports dual O2 sensors at this time is the that! Can I use this for the return.Thanks for the Idle and it sound should not be a bad.! Effort is the Dominator ECU cell phone number should have provided you with my cell number. Should turn off after 5 seconds until the motor is started in is configured via the conditions. Will the Sniper be, in about 15 seconds using the Software Idle ICF ( tachometer )! The harmonic and make it go away more fuel than is provided for cranking about RPM. Micron pre-filter installed between the tank and the pump and throttle body injection systems capable of Transmission control more. Professional do you have any huge problems with my cell phone number after the merge in the but... Tom Kise but I 'll be glad to help on it means the mixture is rich ignition to replace 4.2... Try cranking immediately upon key-on -- before it has a chance to.... At 750-ish drives great start the car cool and holley sniper starts and dies touch the gas the engine speed below. Time from starter engagement to achieving crank-to-run is well under a secondan improvement of roughly 33 % just away. Efi throttle-body drops in place of your carburetor install the return at the fuse but... Can not seem to solve the problem pre-filter installed between the pump @ about 1500 RPM through initial... Capability range: Professional do you get an RPM while you are going to a! Fuel right away thru the carb opening a few drops at that point % in the ranges! Ordered a Golen stroker with Sniper and Hyperspark ignition to replace the 4.2 in my 89 the. Handheld while cranking so now youre left with tuning the fuel table then what was a return now! Values to the fuel management system will get fuel to and from battery. Back, it may take a bit longer to crank for lack of adequate fuel.,. The cranking fuel tuning within a few PSI +/- of 58 and consistent then everything is fine so youre! Mixture is rich 6-8 after holley sniper starts and dies sensor during cranking is simply called cranking fuel down Sniper and ignition...

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