I agree starting with rumbles first post
what pistons
what quench
what compression
all the other build details
not even close to be able to make a head suggestion
too big a head and he could run worse for his application
It's a .030 360... how many stock replacement heads out there do they make that could be too big ? Lmfao.
W series, trick flow, anything "too big" wouldnt be stock replacement.
They're too small from the factory, edelbrocks are bigger but still smallish, not saying that's a bad thing...at all...theres always 2 sides though, anyhow.. it would be damn hard to make a set of factory 360 heads too big for a 360 aiming for 425hp.
Buy heads or port heads 'or do both' , iron or aluminum...your choice.
