225 Build for the A100

Mine weren't the "low comp" versions.
I remember @my68barracuda talking about this very subject back when I was building my last engine. Something due to emissions BS where the piston makers intentionally make them with compression height less than original because with an overbore, no matter how slight, they don't want "any chance" of increased compression as would happen if the replacement pistons were the same height as own were ... An overbored cylinder is by nature bigger than original si if the piston is the same height, with all else equal, your cr would ever so slightly increase.
That doesn't take into consideration that the additional thickness of any commonly available head gaskets compared to OEM shim style as these engines used would more than take care of that "issue" solely by itself.