I've seen A LOT of posts about making HP with a 318-So why is it so ???
Yeah, it's not difficult to do, yet people just don't believe it.
At that time, I really didn’t have much porting experience at all.
The shop I worked at had a guy in town who did most of our head porting.
When I showed him the heads I was going to use, he pointed out a few areas to address...... you know...... do this here, do that there, etc.
I can’t remember if he flowed them for me when I was done with the porting or not, but for some reason I keep thinking the heads flowed 179cfm.
I bought my first flow bench in early 93, and I was messing with 318 heads a bit back then.
That was a small bench, and you tested at 10”, and converted that to 28”.
I remember 318 heads flowed a bit less than “100” at 10”......so, 160’s@28”.