Can you guys help me figure out my Compression ratio

Run the thinner .027" gasket if you can tolerate the higher CR.
With .040" thick head gasket, the CR is 10.44
With .027" thick head gasket, the CR is 10.80

OP, you are only halfway there. Have you thought about your cam, its installed angle, and the resulting DCR (Dynamic compression ratio)? How are you going to use this engine?