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I think he is wondering if it is normal For his cylinders to be so far apart in psi wet cold and hot. He was used to doing it by feel before, but now has a new tool that has him second guessing his old way of doing things.

The lower sided cylinder may have some tired valve parts or guides or even something else affecting pressures. As for the numbers themselves, honestly I have no clue what normal is for a 68 stroked trump, but a ton of guys here will know.

The comp tester is good, you just have to get used to putting that new information in line with what you know.
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