Originally posted by joeyk
thing that gets me is this is still the stock motor "not once cam pistons" (right) 230psi would mean roughly you have 15.1.1 compression ratio there is no way , maby the gauge broke or the motor was started up with on the other 3 cylinders when he was doing the test.
You are not using the correct method to determine compression ratio. You can't just take the psi and divide it by atmospheric pressure.