My low mileage, original 60 can’t pull 50mph up 17 to Sedona. Just an FYI, I tuck in the right lane with the semi’s with my hazards on at 40-45mph.I am in Tucson AZ (2389 MSL), and I was hauling my Wife and I up to Sedona (4350 MSL) haha.
I was getting 110psi to 105psi for my compression numbers across the board.
I have not check my rings yet, I need to tear it down the engine a little further to see those but do not want to unless absolutely necessary.