looks like what you have done so far is good (accept the superchip ).you need to reload the program back into that handheld thing and sell it then call allen for a hot tune ...future mods look good and you wont want a 6.0 if you do all that stuff to your 5.3...i've been talking to allen bout a mild cam for my truck..i think that would be real good for you also..mild cam,allen hot tune and headers will wake your truck up