I just did a compression test on my stock 1971 2.0. I got: 145, 147, 145, 145 on a warmed up engine. Then I did the wet (oil) test and got: 145, 152, 145, 150 I normally get blue smoke on start up and she will puff out sometimes while idling. Is this compression too low? Could the smoke be from valve guides or the seals? Thanks