Doug, Moroso is about 30 miles west of Jupiter Fl. As far as tires I think I'm running 235's. To lazy to go out and check, and I am only two wheel drive 3500. My transmission worked perfect, other than a blown shift and brake tap on my first run in fifth. I did not know I tapped my brake until I watched the video today. Also I did not build up RPM's, I just dropped the clutch and pounded the go pedal. I was doing burnouts before each run, my better burnouts led to better 60' and better E/T's. Ken