Yeah from what I've read I think I like the south bend the best. I think I am going to do the lift pump first bc I have a feeling that will really even out my acceleration. Then start saving for the clutch and flywheel. And in the mean time if the factory clutch starts slipping with the lift pump and diablo turned all the way up I can always turn it back down to the 80 or 60 hp tune. But as of right not it has not slipped once on me, even with the programmer cranked up pulling a 22 ft gooseneck with a mud truck on it.