Still kinda new to tuning with hp. Played with it before blower. Truck is a 2000 1500 with the 5.3 and the 4l60e. I put long tube headers on it, and a walbro 255 fuel pump. No problems at that point. Next, I added an lsa supercharger. I think I updated the OS to the 3bar, but would like to know how to confirm this? I updated the fuel injector flow to 62 (not sure if that's right, but it's what I was told. Stock ctsv injectors.) Is this where I begin tuning like before, or am I missing something? My gut tells me something isn't right. Does anyone have a base tune for an otherwise stock, supercharged 5.3 I could look at to compare?