It is a fixed pitch prop. Prop has just been overhauled too and that has made no difference.
A new rpm indicator has been fitted but again no change. I could not cay about calibration but with a new instrument it seems pretty pointless?
As regards ground running - on take off roll it is upto the red line but then in climb it creeps into it and levelling off... 150 - 200 revs over the limit.