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Message: [QUOTE="glovemeister, post: 1566715, member: 3867"] Yes, I ran it twice or three times with two different gauges, because I was not expecting to see good compression. One gauge is an OTC/Ashcroft, the other a HF. I will say I just pulled the GP, and installed the gauge which I guess could have had oil contamination onto my results... With OTC gauge lowest cylinder was 395, highest was around 440ish. With HF gauge, it was around 150ish 1st crank on each cylinder, and maxing between 410-450ish. I will say I did double stack check valves, ie my tester has one and my gauge set has one. I ran a factory spec blowby/cylinder pressure test and it also passed that. [/QUOTE]

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