Now I am no tuner by any means. I bought the program so have the ability to monitor and make small changes on my own car, and also make it easier to get tuned just by sending logs to my tuner. my dad has a 2008 silverado with the 5.3 and asked if i can get him better mpgs and maybe alittle more power and stronger shifts. Does anyone have a base tune for this kind of setup? I have a log on his truck and i will add it on here. Any help would be awesome, thank you.