What heads?

[streetk14]

Well, I agree with graycamaro. Number are not everything.... you have to look at it as an entire package.... and that package needs to be done right.

And not to start with something that we have gone over and over, many times before..... but the TFS 195cc heads will outflow the AFR's pretty easily...... without being fully CNC'd. And lets not get on the CNC subject either...... because what AFR does to their heads is mearly a guide line to begin with. A true pair CNC'd heads would run you about $6k+...... and thats just the beggining, because it still has to be set up for its peticular package to begin with.

I was by no means saying that flow numbers were the only factor in producing power. Intake and exhaust port size and shape, combustion chamber design, valve size and even head material all can effect power output. Like I said before, throwing a big set of free-flowing heads on an engine that does not need them is not going to help. But, I'm not sure where you got your info on the flow numbers. Check out these links for some unbiased test results. These are the basic 195's available from Trick Flow and AFR respectively. These are not the "CNC" Competition Package AFR's.
http://carcraft.com/techarticles/116...t2/index7.html
http://carcraft.com/techarticles/116...t2/index4.html

-Andy