Holley part number 554-155. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110?
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Hello everyone, I'm having some lean AFR spikes during hot idle. I'm using my Holley Sniper on a 1973 VW Super Beetle. Sometimes the ECU will recover, other times, the engine dies. I'm confident that I took care of all vacuum and exhaust leaks. I did also notice that my IAC Position stays at 0% at hot idle, which I'm aware is
i have a Holley 650 double pumper. this was a problem of backfiring, I bought a kit and I redid everything but still gets this. I tried all possible combos but you can not have the right carburetor. blacks and the venturi becomes primary.
The fact that Holley released new firmware for the Sniper EFI System recently slipped past most existing owners. And while I am not one to recommend upgrading firmware just because it is there, the new firmware supports a feature that I think is really a huge benefit to many (most?) Sniper EFI User: Progressive Linkage. As you
Holley Classic HP 950cfm - 1.750" throttle bore and 1.375"venturi (isn't that the same as a 750?) Holley 4871 850cfm - 1.750" throttle bore, 1.561" venturi (isn't that larger than 950 above?)
Re: HOLLEY 650 STREET HP trials and tribulations. Please assist by Stingr69 ยป Fri 11:22 am How are you adjusting the accelerator pump linkage? Did you set the transition slot exposure? These new Holley carbs have a lot of adjustability. (Maybe too much) I don't know how we ever got down the road with the older, simple models.