Another Stumble Guestion.
I Know you guys hear a lot of these stumble Question. So I'm gonna make this short and sweet. I Bought a new Holley Ultra HP 950 from 2500rpm foot brake start it will stumble just enough to take me down from 6.20 to 6.40 It come out of the stumble quick but it should not stumble at all. now if I take it to 3000 it want stumble. now I know I could come out everytime High RPM and by pass the stumble but I really would like to know what is causing it. there is one thing I noticed is that the rear high speed air bleed was dark brownish color and all the others look new. I Don't know about carbs so some help would be Grateful. 2670# 85 camaro 434 665 H/P- 1.76 PG - 32 X14''slicks Well it was not that short Sorry.
Andy