What I have is a 440 stroker -.008 in the hole flat top, icon pistions 828 .045 head gasket crushed thickness which would give me .053 quench .What I'm wondering is this too much quench or should I switch to a thinner gasket felpro 1009 which is .039 thick ?The heads are 86cc which will give me 11 to 1 and these are iron heads . My goal is to try run 93 octane .
jim