I don't know if its the carb or what. I launch my car and it bogs down for a second, then it takes off. I have the 465 holley, it also happens when I redline and shift to second gear.I get wheel hop.I don't know if the carb needs rebuilt or what so help me out so I can fix this problem.

josh

 

Josh,

First I changed your thread title so members know what you are looking for in a technical problem.

Did you just install this carburetor set up or has it been on there for a while and now it is acting up?

What type of Fuel pump are you running?

After getting those answers then we would ask. When was the last time the fuel filter was replaced?

 

well i have had the carb on there for about 2yrs the filter got replaced about 3 or 4 months ago and i also i have the holley fuel pump and reg it goes up to 14psi but i have it set where racing beat recomends so it happens way worse at the track on the street it happens but not as bad

 

Set your pressure at 5psi, if that still gives you issues then go to 6psi. Holley's love higher PSI compared to Nikki's and Weber's. If you get hesitation when you first stab the throttle or when you quick-shift to another gear and stab it, I would recommend a accelerator pump upgrade. Most comes with 30cc AP's, adjust the nut out until the hesitation is gone, then go to 40cc. Adj until needed. You shouldn't have to go above 40cc, unless you have a modified engine. If you do, it is more your tuning than your AP settings.

 

well th mods done are the holley carb, rb intake man, rb headerm custom 2 1/4 exhaust, center force 2 clutch emissons gone blaster 2 coils accel wires thats it, but ill try what u said thanks!

 

im having these same problems with my holley.
ill try to take pictures because i dont really know what everything is called and what it adjust etc etc.
new to carbs.

 

the holley needs 6 psi, i'm actually running a 6 psi pump. check the accelerator pump cam. they wear quite quickly. it will drastically effect the amount as well as when it squirts.

 

Also, wheel hop is more generally suspension related.

 

yeah i forggot to metion i have the tokico 5-ways and the rb suspension kit, i have it set on 5

 

On 5?! Put that thing on 3 at most! I have never run illumina's (so what I say is what I have heard, disclaimer) but 5 is for flat pavement RACE tracks. 3 is hardcore street, I believe 3... or maybe 2 is what the tokico blues are for an illumina. Having it on 5 is what is causing your wheel hop!

 

If the jetting has not been changed from what Racing Beat has them set at, then I would say it's more than likely an accelerator pump out of adjustment. The primary jet should be a 52, then maybe you go up or done a size from there. The Holley runs best between 6 to 7 psi. Make sure to check you float adjustment with the car running also. Another thing you need to check is your timing. This makes a big differance on the Holleys. If you are running a stockport with the vaccum advance, set the leading at 8-10 degrees, and the trailing at 18-20. I have found that they like a 10-15 degree split.