I have been having issues with my truck for a while now, did a new LB7 CP3 and LBZ regulator along with my new II turbo, then we found 3 injectors be to be bad, replaced those, truck felt great for about 3 hours, then started to feel sluggish, dynoed it 2 days after I got it back, made 523 which I understand is about normal for my setup, but it feels sluggish now?? I changed tunes and it felt great again but same thing it was short lived. I am going to try to reset TAPS later tonight and see if that works??? Any ideas?? Any help would be greatly appreciated, I am very close to just getting rid of it and buying a 1500 with a 5.3 no issues!!!