So recently I bought the HPTuner software and began learning how to tune my engine. Seeing how popular the LSx swap is becoming I thought it'd be nice to have a repository of tuning info here. since I haven't really become an authority on this, I figured I'll just post links to some threads that I've used to find some of the info I need.
Before I start linking stuff I guess I'll throw in the disclaimer: I didn't generate any of the info in any of these links. I make no claims that the things they suggest won't destroy your engine or leave your truck burning next to the freeway after you follow their advice. CHANGING THE WRONG SETTING WILL BREAK THINGS VERY QUICKLY. KNOW WHAT YOU ARE DOING BEFORE YOU DO IT!!! The first and most important piece of advice I can give is make sure what you are doing is safe for you and your truck.
Some of this info is outdated. I'll add info as I find it, since I'm still in the process of learning. I've found a lot of info that points to settings and things that don't exist in the current version of HPTuner.
http://www.ls1lt1.com/forum/pcm-tuni...g-dummies.html
http://ls1tuningguide.com/tuninghelpfiles.php
http://tredalign.com/hptuners.htm