I'm not sure if this is common knowledge to many of you but I just thought I'd share my little find. A few months ago while browsing I came across a link to an article by Truckin' magazine and discovered their tech install page. You'll have to do a little sifting to find articles specifically for GM trucks but they have hundreds of awesome articles and how-to's with detailed instructions, pictures, and part prices for almost anything you can think of. For installing fiberglass fenders/bedsides, train horns, painting your truck, lifting/lowering, and many more including quite a few articles on performance parts for 5.3l including dyno numbers to give you an idea of what to expect. If you've already been here I'm sorry for wasting your time, if not it's really worth a browse.
http://www.truckinweb.com/tech/index.html

![Firing on 4 cylinders [L1] Firing on 4 cylinders [L1]](./images/ranks/sparkplugs/ranks_sparkplugs_4of8.gif)


![Shifting into Sixth Gear! [L3] Shifting into Sixth Gear! [L3]](./images/ranks/shifter/ranks_shifter_9of9.gif)

![Combustion on 4 pistons [L2] Combustion on 4 pistons [L2]](./images/ranks/pistons/ranks_pistons_4of8.gif)