Guys, All of us are guilty of just looking at the peak CFM of head flow, the head has to do a lot more than just flow air.
My 12 port flows 25% less air than my bump port but makes more power. At first I had the boost turned up thinking I needed to compensate for the less flow. But now I am down from 36 psi to 25 psi and going faster, I have changed something on the fuel system that may have the problem with the more boost will find out this spring.
The car is apart to change the roll cage to make it legal for the 9's also on the last run of this year the cast cam broke and took out the engine and trans.
