Need LSX454 help

I'm new to this so I'll give it my best. I'm installing a LSX454 in a 14 camaro, it's a gmpp crate motor with a msd airforce intake, fast 65 lb (30657-8) injectors and a NW 102 TB.
The car will have a T56 6 speed.
I will be using the E38 ecm. I am looking for help and guidance with a base program, the ecm is clean ,I do have the factory ecm program but the ecm is different and will not work with the same wiring harness that I am using.
Any help will be greatly appreciated.
Thanks. Paul

Just to be clear...the program I have is from the factory 454 ecm pn.19354345