Hi guys I am a long time reader first time Poster my name is Brian. 46 in cencal doing a 5.3 LM7 swap on a 76 gmc shortbed 4x4 6" lift 35" tires 4:56 gears with trutrak lockers front and back NP205 and SM465 trans. Was building it for my kid till he said he doesnt want anything to do with it so i figured i would build it for me for fun. Then got the news a few months ago that I have stage 3 lung so the direction of my energy is changing a bit as i am sure you could imagine. Motor and wiring harness is in and i have gotten a cough out of it but the decapped injectors and stage 3 cam on fresh rebuild are nit agreeing with the stock tune as one would suspect. Got the free software and the obdxpro cable and standing here like a deer in headlights trying to get my brain wrapped around it but the first round of chemo has me in a cloud still and i could use some guidence. thanks in advance