I might have a 327 soon, A friend of my dad has one, he says it's bored 30 over.. or 60 over, I don't quite remember, but it's from 1969, so I think it's one of the older 327's rated at 350hp-- I think he said the CR was 8.?:1 something, so in order to raise compression couldn't I just have the heads shaved? He hasn't given me a price yet, wants me to come out and see it first.