I am wondering how much you can take the deck down on a 440 block before you have to start machining the intake,I am running the performer rpm with the rpm heads And I want to use the 440source stroker kit, 4.250 crank,7.100 rods,17cc dish 1.480 c.d. pistons which leaves the pistons .015 down in the hole and gives me 10.05 to 1 with the 84cc heads with the .039 head gasket and a .054 quench.I am wanting close to a .040 quench and 10.50 to 1 comp.So I need to either bring the deck down or order custom pistons,so thats why I am asking.Thanks guys