I finally finished the install of my Holley Sniper EFI. It was quite an ordeal, but thanks to some help from Holley (Patrick in Technical) and my friend Mike, finally got it running good. Now to put a load of miles on it to let it learn, and I'll get back when I get a dry day here, a rare occurrence here in SC as of late.
I like the sniper system it works great! I have 700 miles on it and it is still learning. It drives great though so not a big deal. Make sure to get the throttle extension kit. The throttle is way too hard other wise.
I ran into a slew of issue with this. The first throttle body was bad, and then I had problems with the fuel pressure rebulator in the throttle body. Still wouldn't run, so did some troulbleshooting with Holley, found they sent me a bad fuel pump, which is on the way. That should finish it off. I'll let you know how it goes.
Well, not quite finished yet. Still have same problems with fuel. I am replacing the fuel feed line to the efi unit. If this doesn't fix it, Holley and I have to talk....again!
Sounds like some of the same issues I’m having, bad fuel regulator, back firing out of exhaust from over fueling and bad IAC sensor. I shelved it for awhile to regroup with myself lol
I know the feeling. I had an early Holley setup that I had $700 in dyno time trying to tune just to find out it was a bad unit. I got my money back for the EFI ($1800) and moved on, of course not the money for the dyno time...