My old 426 C.I. 415 HP M.W. stocker would pick up around 20 MPH in the last eight mile, I sold that car in 1988 before NHRA started offering 1000 ft. E.T. and MPH so I can't compare your 10 MPH increase in the last three hundred feet to it. I think your good though up

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)