Does anyone know what the CR will be with this 454 .040 combo?

What should be the head gasket I should use? Should the piston be flush with the deck, or in the hole?

Joe

Im running .030 KB203 pistons with open chamber oval port heads. The pistons have a .133 dome and with 119cc chambers, my compression came out to about 9:1. Perfect for pump gas but i dont remember what # fel-pro gasket i used. They have worked well so far, no complaints.

I'm running KB 257s with zero deck and 781s. My compression is right at 10.3:1.My heads ccd at 116 when the work was done. It runs fine on 94 octane with 35* total advance. I haven't tried 93. I use Roll (sp) head gaskets on mine. I used the .049 thickness I believe to get the proper quench.