422 cube Compression Suggestions

When I bought my 340, it was a bare block, had to .060 over it to clean the walls up and bought my bottom end as well as top end before I got my block back from the machinist only to find when assembling that my deck height was .015 lower than factory, I'm assuming to bump compression, I was in the same predicament you are. I just bought a couple of custom MLS head gaskets from cometic on their website. They'll probably have just the right thickness to dial in your CR