Good job. The Converter on the car is stock and only allows a stall of 1500 rpm's. Judging by the 60' times on Run #3 it appear you really spun the tires when you left the starting line on that run. That's why the times are so different.
just my $.02 from an old Drag Racer.
P.S. You Red Lighted is the reason you beat the other guy by 2 cars lengths.