Originally Posted by whitey70ss
Hi I'm new to racing junk and am putting together a 70 chevelle with a smallblock and a muncie with 3.73 gears. The specs on the engine are (350 .60 over, edelbrock performer RPM heads, isky cam 505 lift 292 duration, 244 duration at .050. It has good headers,free flowing exhaust. I ran this combo with a 600 edelbrock carb and have been thinking of switching to a holley. I feel that the quadrajunk style carb is holding it back?? Any and all info is appreciated! THANKS WHITEY.
I'd say yes, that 600cfm hunkajunk performer has to be holding you back,they make great boat anchors though.
I put a mild pump gas 351W in the boys 89 GT mustang, similar set- up as yours, performer heads and intake, 500 something lift hydralic cam, shorty headers, flows, 373's, msd 6al box.
We're runnnig a 750 double pumper W/ 30cc acellerator pumps front and rear, 78 square on the jetting (no power valve) and a pro-form center section.
Best ET so far - 7.50 in a tad short 1/8 >
not bad for a ford I thought.
Goodluck, Cp