2:91 or 3:55?

Probably a bad time to tell you that I"m at 5000' elevation.
That's why I thought I could get away with trying to bump the compression a bit with the thinner head gaskets.
And thanks again for all the calculations and input. Not sure I can say I understand all of it, but it helps for sure.

Obviously cause the engine is together right now I can't measure piston dish volume, or combustion chamber volume right now to figure static compression, But I did run a compression test on it this morning just to see where i'm at. Engine is only a couple years old, maybe 6000mi on it since build.
Numbers are all between 139 and 144, most were 140