I have a 2005 chevy 2500hd with a btr truck norris cam it runs good and idles, have went in and advanced the timing from 16 to 20 in a little grid and raised the idle to 800. The problem comes when its in gear it will go into all gears but inbetween dips down in rpm but will idle and roll, but once you tap the gas move and let off it will go when you let off it tends to die. If your not aggresive with it realesing the gas it will try to catch itself before dieing in gear. rolling* I have a log but not of with it dieing. Wanna know some tips im a 16 y/o and my dad trying to use hp tuners for the first time..... might lower it to 750 to idle, but idle dont fix anything and it liked the timing nothing else istouched. Attachment 125823 Attachment 125825