I lost my cc numbers on my head, but it is at close to 9.5 to 1 compression. I am switching from Loc-Wires to Cometics and figured I would thicken them up to get the compression down a little bit. After I shave the heads down .010 to get rid of the loc-wire grooves I figure I will need to add at least .030 to the head gaskets to get the ratio down to a more liveable 9 to 1. So will .060 compressed Cometics get me where I want? I/m running a 274 inch stage 2 with Stage 2 heads on a 4.020 bore and 3.59 crank.
Greg Kring
Greg Kring