my original motor that ran a 14.2 @ 95 was weak, very weak. Of all the NA racers, my motor always had the lowest MPH meaning it had the least HP. The motor dyno'ed only 175hp @ stage III. That 14.2 run had headers as an extra mod to the motor. But I have no clue how much HP it adds. Man, if I had your motor(or any other motor), I wouldda/couldda/shouldda been in the 13's! I'll never know now...