As I recall, when I did the head on mine, I checked the compression after it was done and I was getting between 168-172 PSI. But, this was after shaving 12 thousandths off the head to level it out. I think that factory should be around 160-165 PSI. My engine had 165k on it when the head gasket blew. As Donnie reassured me, the bottom of the 103 engine is pretty sturdy. Guess so..
1987 BMW 325