New guy hoping for good advice. I was finally ordering a rotating assembly when the salesman said I could only have either 9.3 or 10.8 compression ratio. Stopped me cold. Reading these forums has convinced me that 10:8 is too much. It will be a premium pump gas street car, GM performance aluminum oval port heads, 496, FORGED pistons. He checked JE, SRP, WISECO, and maybe another brand of pistons. I think the CRs above were SRP's. Milling domes or heads would be my last choice. Any other brands of (off the shelf) pistons that might have a small dome ? Would thick gaskets lower it enough to justify the "quench" problem? 4.25x4.310, 6.385 rod. Thanks.