carb question (Holley)

Lonewolf3165 said

I see now where you are coming from. Its the affect, or over affect of incorrect timing that would make a person over compensate with the carb adjustment(idle). Similarly if they had the idle mis adjusted the mechanical advance would throw the timing off. I agree. I had thought you were saying the timing(directly) would cause the fuel to pull over. :violent1: Sometimes it doesn't get through right away. (that's me on the left!)

Click to expand...

No sweat, all good. That's it in a nutshell. One causes issues in another systems area. I've found that about 90% of idle issues aren't really carb related. It's usually an ignition issue if between the two systems.

Bottom line, it's fubard right now. What the OP has for vacuum at 2K+ doesn't mean squat, it's irrelevant. You MUST get the idle down and on the actual carb idle circuit before you can make any kind of transition/enrichment circuit (PV) decisions/choices.

I'll ask one last time before I'm out... what's the initial timing? Not the timing when you have it revved up to 2000 rpm. You'll chase your tail until you get the initial somewhere close