Well im at the track right now, have my truck stripped, backseats, hitch bumper tailgate spare, and im runnin 25/20 psi with the extreme x, i can only get 13.1 outta it so far, 33x12.5 toyo mt and reaction time of. 2xx my 60ft is 1.8 and im seein like 47 psi, anyone help me run faster?