This is a topic that always interests me. Don't get wrong as most of you on here are probably smarter than I, but I think Pontiac guys have a some warped perception of head sizing. Even when talking to powell customs he said they speedmaster rounds ports 215cc runner are too small for a 460 stroker.
Lots of SBC guys run 200 cc runners on 383s that breaks down to 1.9 cubic inches per 1 cc of runner size
Yet you look at a 455 with 215 runners and that equals 2.1 ci per runner cc
You never here about SBC or sbf guys talking about runners being too large. But Pontiac guys tend to obsess over it.
Just interesting to me.
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