Inliners International Forums General Discussion Hi Performance Chevrolet 261 build and head questions

I'M building a 261 we speak.There's info stating the 848 head combustion chamber cc's is 79.5 on an unilled head.Assuming it's correct.....
Plugging in the numbers and using the many available compression ratio calculators online..... if your piston sits about .010 below deck and you run a flat top piston,compression is just about 9-1.
And .010 below deck gives around .060 quench with the typical .050 compressed head gasket.