I am looking to get more power out of my 2001 Silverado 1500LS 5.3L 4x4. A buddy of mine said to put in a better cam. I honestly don’t knowa thing about cam shafts other than what they do. First off I would like toknow what a good brand to get is and what to switch with the degrees of the lobes.I don’t want to go crazy because I would like to have descent gas mileage but Iwould like to be able to have fun now and then. Second of all I would like toknow how hard it would be to install it and what not.