flywheel horse and rear wheel

I’ve dynoed a few combos. The first one was a 500” stroker that made 763hp at the flywheel And 579hp at the wheels. That was through a 4 speed and Dana 60. The second combo was a 572 in the same car that made 943hp at the flywheel and 640 at the wheel through a TH400 and 5500 stall converter. There was no alternator on the engine Dyno tests but we did back to back tests and the alternator only lost a few hp. There was also exhaust on the car on both chassis Dyno’s.