Yup, I have PCMHammer working just fine. UniversalPatcher works, but I like the tunerpro interface better with the XDF that I've found for the 12212156 os. I also dont really need anything else...

Hi all, Im here because I swapped the intake on my 96 sierra 5.7 to a holley efi intake. After that it needed a 411 swap, because clearly everything is different.

Id like to learn how to tune with...