Thoughts on a 225 rebuild

Alright, I see a couple of flaws you'll want to correct.

1. Your bore is going to be 3.45 or 3.504; There may be a size between, I'm not sure
2. What head gasket are you going to use for that thickness? I believe a FelPro is .038
3. Also, did your calculations require a gasket bore? mine usually do...
4. Your combustion chamber looks a little big for stock. I believe mine was 58cc

All of that may mess with the compression a bit. Best of Luck!