sorry, my bad. I re-tested #5, compression is 120.

So here is result of the new test (sober test, didn't drink any beer this time).

cylinder 1: 100 psi
cylinder 2: 50 psi
cylinder 3: 95 psi
cylinder 4: 105 psi
cylinder 5: 120 psi
cylinder 6: 100 psi
cylinder 7: unknown, can't get to it.
cylinder 8: 110 psi.