Truck Norris Nsr 5.3l lm7 help

[UFO4Rent]

Hello all, I'm new to all of this but eager to learn. I've successfully deleted vats with pcmhammer and tunerpro.
Engine runs but not happy. Can anyone possibly point me in the right direction of getting this thing tuned or sharing a bin file for the cam I'm running to be able to drive to the exhaust shop. Everything is stock except the cam and long tube headers. After the exhaust is on I plan on taking it to a local tuner for a real tune. I would assume the timing has to be adjusted.

Here are the specs,
2001 lm7 5.3l from a suburban
Truck Norris Nsr cam
OS ID 12208322

Thanks for any help!