Brad, I ran one on my 416 W2 headed SB. Great carb. My 3500 lb. Dart went 11.18 @ 119.+ mph 1.52 60'. 78 jet in the frt w/PV 84 jet in the rear PV blocked. Had to try different squiters to get the best 60'. Think I would up at 32 in the frt and 35 in the rear.