I got 15.5 mph with my 2.6L and 31" muds. I now get 20.5mph with a 4.3L and 32" muds. You figure?


87 Raizer, 4.3V6, Mod TH700R4,231CHD, detroit rear and LSD front, bouncy seats, 2" lift and 32x15 BFG MT tires.