The only time I have heard about problems with the n20 is poeple running dry kits on there trucks.As the old nos saying goes lean is mean.With the program from Diablo the timming will retard upstairs so there wont or shouldnt be any detination.And by tapping off the fuel rail there should be sufficent amount of fuel.If the computer sences lean conditions it should send extra fuel to the motor.I would rather blow out some black smoke(running rich)then blowing out number 3 cylinder This I have seen happen when poeple use a dry kit.But Ill let you know how it turns out.Should be installed in about 1week.Just to let you know im going to run the JL3# pully.The only thing im going to lack now is traction..LOL..thanks