All I can tell you is we put this Holley Sniper EFI on my sons Dart and he really likes it. So far the car has slowed down a bit as its run 11.60's so far on the EFI and it ran 11.40's with a 750 DP. But we are still tuning it and the car itself runs great as its just slowed a tad which many said it would. The driveability is awesome and my son says he wont go back to a carb. Ron