Hey everyone I was wondering if anyone could give me a hand on figuring my compression ratio.  There are calculators out there but I don't know my cylinder head cc or my piston dome volume.  I also am not sure of the head gasket bore diameter.  If anyone has this info that would be awesome, here is what is in my 1962 292 y-block.  I have Probe domed pistons from Mummert, 3.47 stroker kit, -.002 decked block, a total of .020 cut off the heads(don't know if any was machined before I bought them), my bore is .080 over stock and I bought the heads from mummert from a 57 292.  Any helpful info would be great.  Thankyou