Update:
Just ordered some stuff for the 5.3L. Got a Cam, Springs, and Pushrods. The cam is from Comp Cams and its their LSR series. The specs are 215/223 .604/.610 112LSA it has a power band from 1300-6500 rpm so they told me I can get by with the stock converter. I also got Comp's 918 spring good for .625 lift. I found some 7.400" chrome-moly hardened pushrods for a good deal to so I got those. Next I'll get the computer tuned for the changes along with some other stuff!

Can't wait to hear it once its installed, I'll post pic of the install and video once it runs.