I downloaded a few data logs today and looked them over. As expected, the stall speed went up with the change from the 505 to the 572. The converter is flashing to 6600 rpm now when the brake is released and then it drops back a hair to 6500 as the car starts to accelerate. The driver shifts 1-2 at 7300 and the rpm drops back to 6600 rpm. Same on 2-3 shift and then the car goes thru the lights at 7000 rpm. Car doesn't have a driveshaft sensor so I can't see slip.

The vitals all look great. AFR is 12.8 all the way down the track, fuel pressure is steady at 60 psi, oil pressure is right at 70 psi, coolant temp is 180 degrees, battery is 13 volts with the alternator charging. Engine is using a little over 400 lbs/hour of fuel as it goes down the track.

I looked at three runs and they all looked exactly the same. He has the 2 step set at 3500 rpm which seems low to me, but it is pulling a two foot wheelie so he doesn't want to go any higher.