308 head porting templates?

There are threads on here about porting the 360 heads, 308 and 974.
I have a set, I could start a thread when/if I get the time and show you how w/o templates. I have the templates, not impressed, but at least they don't ruin the port -they yield around 230'ish cfm int 165'ish exh through .550-.600 lift.fwiw