Charles, that sounds a little slow for max speed, but with 7 hrs, you probably should wait until the oil change, FWF check out, ASI calibration then recheck.
I do my checks at 8000DA as converted by G3X. A BA prop is likely best at 2700 rpm, but mine is 2650. You will need to have the engine warm - 25 min running, then get to 8000DA, stable, and sweep the A/F for best speed. You can try EGT numbers, but your speed will be max at ROP best power by definition.
It usually takes a few minutes to adjust to each mixture adjustment - -even a tiny one. Then let us know, engine, ignition, prop, FF and finally the KTAS.
Yours is a timely post, I was just sitting here thinking about a poll to get these numbers!!