I took dad's truck out to a 1/4 mile track today. I've been tuning on it for the past few months, and the tune I have on it now is a pretty big tune. Quite a bit bigger than what is safe for a stock transmission (and it is not happy about it), but I took it to the track and got a few good runs on it. The best run of the day was a 13.69 @ 89.9 MPH, but I was on the brakes pretty hard trying unsuccessfully to keep from breaking out. I don't know what happened on that run. It just hooked up and ran, but I had several other runs in the high 13.7 - low 13.8 range at around 96 MPH. According to the calculator's I've put the numbers into, with a race weight of 7850 lbs, that puts the truck at somewhere between 480 to 500 HP at the wheels depending on if you go off of ET or trap speed.