I know this is taking this subject of target a little BUT.......
C130 chief, i have to disagree.
My first sets of head that i ever ported, had more air flow, had the fuel to support it, and became a DOG on bottom end.
although i had a lot more cfm then before, i totally DESTROY the bottom end.
Did it make more Power! YOU BET, by a couple mile per hour at the end of the 1/4.
Did it run faster? NO! A full sec Slower!!! Why? Because even though it would rev 1000 rpm higher now.(6800+) it would not get out of its on way! It was dead for the first 60 to 100 foot of the track..........then...... it took off like i hit it with a shot of nos!
A eng is a air pump..........and so much more then that. I had such bad exh reversion, the the intake manifold was black all the way up to the carb base.
And that was with a 9.4 compression 340 .474/280 MP cam.
Yes more air/fuel will make more power, IF the port is not to large(read air too slow or weak velocity) and the exh doesn't have reversion or exh reverting to the intake.
