452 heads on a 1965 Wedge ?

Brooks James said
My question is :
To calculate the cr with 452's, do I find the cc's of the heads and subtract the difference,
What I don't know is how many cc's are in a point of compression ??

Compression ratio is the volume of the cylinder sweep divided by the volume of the cylinder head. Nothing more to it.

For what is worth I would never use a an .080" thick head gasket on an engine unless your running a Top Alcohol (Blown) class (which they do).

Easiest way to figure compression ratios is to use the Summit Racing Compression Calculator Compression Calculator

Tom