So i got a buddy that is using an old unlocked pcm of mine, i still gotta change alot of things as it is currently tuned for a built 5.3 and he has a stock 6.0, this pcm has been tuned for an 80e, my question is how do i go about changing it to a 60e, also tuned for 33# injectors and he has 28#, i read on HPtuners how to do it but i guess i cant comprehend that crap, thanks for any help.