I have a pair of 9377 non-HP 1150's I plan to test, one converted one not, I believe the 2-circuit will be cleaner at launch all else equal and should make it quicker. I can tell you the 1250 HP I converted will go from idle to wide open cleanly and when traction is good will repeat the #'s. I ran 4- 5.08's in a row at the last Orlando 1/8 mile race. What model is you Dominator and is it an HP or not?