10.5:1 273 pistons with 360 heads compression ??

My goal is to keep my compression up with the 360 heads.

Now I have (zero decked block with 2bbl pistons and 4.06x.039 head gaskets

Option one (2bbl pistons with 3.7x .028 gaskets and 360 heads and cut heads)

Option two. (4bbl pistons 10.5s and 3.7x .028 gaskets and 360 heads)

I would prefer to not cut the heads or tear into a fresh motor for a piston swap but I gotta keep compression up..

I believe the difference in cc between the 920 and 308 heads 8-12cc's