Rumble I really don't think he is trying to start a pissing match. And i'm not either but i kinda have to agree with him.
Here is my mind set.
Can a 340/360 head be ported to make 270 cfm? YES i have done it. but not before i found water and broke into the roof on one of the spring pads.
I bought a set of rhs head and had IMM put 2.02 in it and maching spring for my cam. Had to flow test them heads before i installed them
they flowed 274 cfm at the lift i have for my cam.
They were way quieter and stable flow. at that same cfm.
Them rhs head got my 3860 pound car in the high 11s at 4400 feet. Not a chance in hell them 360 head i ported would have come even close to that kind of number, even thow they basically flowed the same cfm.
not even if i put a bigger cam in it.
This is what i think he is trying to say.................
