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Had to change my water pump and noticed it is a 6.0 and when I changed the ci and cv to a 6.0 the only thing that changed was the ve is that normal

Been working on this truck for a bit and fixed a few issues I had with the tune but now seems like Im way down on power and fueling was with in 2% just affraid I missed something.
02 silverado
tbss...

So what was the exact issue I just started having the same issue all the sudden.

Best thing to do is download a base 6.0 4L80 tune and use it as a compare file only also looking at the tune you posted if your running a big cam your idle is way low and the spark advanced tables...