no set numbers. all must be within 10 psi. if ya really want to know the condition of the sealing capeabilities have a leak down test done. a world more accurate than a compression test.
thanks rodbolt. All are within 10 and prop is turning @ 5600 @ WOT. Guess I could re-prop to compensate for loss of power and boost WOT to 5800 or 6000. TH
