I just thought I would post a converstaion between some people about a guy who got some AFR CNC 355's and had them flowed when he got them. I think it is always interesting to see figures from regular people as opposed to manufacturers or magazines.
Here is what AFR advertises
What makes this really impressive is that the AFRs flowed the advertised intake number on a .1" smaller bore diameter flow bench. The exhaust was off, but AFR uses a pipe and this guy did not, also the smaller bore may have played a part.