Originally Posted by wmeabates
Dave,This is from the build sheet of my pro systems holley hp 950. Primary main 76 [72 to 78] 6.5 power valve.Sec.main 86[83 to 89]power valve pluged.Hi air 36 all 4 low air 76 all 4.Bill.
That's identical to the build sheet from my prosystems. If you don't mind me asking what are you running for an engine, they say no off the shelf carbs. I am having to run a spacer as the accerator pump hits an intake runner. Just curios.