I've built a 327, small journal motor and I'm wondering how much compression I'm going to end up with, roughly. The deck height is stock, bored .040 over, Sealed Power 310NP flat top pistons with 4 valve reliefs, new Word Product S/R heads with 67cc combustion chambers and 2.02/1.60 valves, Fel-Pro blue head gaskets. They are the ones that come with the 260-1000 gasket set and I think they have a .039" compressed thickness.