Ive never ran one of those motors. I usually run 4 strokes when using glow motors. But 8200-8800 seems like a good spot and thats where many larger 4 stroke motors would be running at.
Ive got a 150 that runs about 9100, but my 220 runs closer to 8400. Again...these are four strokes. The only 2 strokes ive ever had were smaller .46 types and they could run high 10000, but they are much smaller.

Just as a point of note....at 8200 rpms, with a 10 pitch, your going to see about 77mph in the air....however...most motors unload a bit once in the air so might see 8500 which would be about 80.5mph