I have a 2000 ext short 4x4 with the 5.3 i plan on adding a nelson tune and catback exhaust and the billet servo's. I would also like to cam itany ideas? ive heard alot about going with the factory ls-6 cam...but i don't want to affect the drivablilty of the truck make it a dog on the bottom end or have to replace the stall converter ect