Missed on this combo?

Ironmike said
No way, brutha. With 68cc I'm at 11.25 to 1. I cc'd a chamber today and came up with 71.5. Rod told me they were a shade over 70.

Can't do it with head gaskets either. I run a .035 quench with the Ole Felpro 1008.

Hughes took .009 off the Eddy's, and they did measure 68 on the money. BUT, I don't know what they were before they milled them.
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I figure about .006"/cc on a small combustion chamber, so about .021" to keep it at 11.25:1. If you leave them at 71.5cc and 10.83:1 compression, and your engine makes 600HP @ 11.25:1 compression, you will be all the way down to 598HP @ 10.83:1. Mill them SOBs to 64.5cc so you can get 602HP.