How many of yall have stories about tractors turned up and dyno'd?

We had a rolling POS 4850 come in a few weeks back and one of the other guys in the shop has been busy with recon work on it. After he washed it today he ran it on the pto dyno.
I think those tractors were rated for 190 or 200 horse factory
It has 8000 total hours with about 2000 on a rebuild.
It pulled 285 horse on the dyno, and it still had some left!! I still had some throttle and it was only drug down to 1600 rpm from 2100 no-load. I bet it would have touched 300 before it got snuffed. Its got a straight pipe on it too, sounded REALLY good gettin pulled down on the dyno.