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Discussion Starter · #1 ·
I have a question for you guys. I have a set of Pro Comp heads on a 468 that I bought used. After a new valvetrain and necessary repairs(Joe at maximum race eingines) the heads ended up in the 340cc range. The heads flow:
Intake .750 (372.71) Exhaust .750 (244.21)
My question is if the heads are too big on a motor does that automatically warrant more fuel and timing. I know every motor is different but I am trying to get in the 9's I have a best of 10.16/131 last year. My car is only 3150 with me in it. I am wondering if these heads are not doing what they need to do or is it in the tune. I run a 1050 dominator with 92 jets squared and 36 degrees. Could a 468 need 94,96 jets?
 
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