I am a first time tuner. I recently put an atk 460 HP 6.0L in my 1500 04 silverado z71. its got cold air intake, long tubes, straight 2.5 exhaust all the way out no cats or anything, ported throttle body, 60 lb injectors, and wide band installed. I am a lil overwhelmed. I have bought and read "the ultimate gm efi tuning guide" book. I tried to read and follow along. but im just more of a hands on kind of learner. just looking for someone to meet up with me (hopefully this weekend) to give me some hands on instruction. i don't want to ruin my new $4000 motor right off the rip. i started with a stock 6.0 file. made some minor adjustments just to be able to do the initial break in of motor and rear end. but now im ready to get it running right. Thanks for any help.