I have been modin grand prix's for the last couple of years and have a pretty good foot hold. I have a 3.3 pulleyed GTP w/ supporting mods. But I just purchased a HP tuner and I dont have the slightest idea what to do:icon_sad:. I have 0 tuning experience but decided (with the help of a descrepency with my tuner) I need to start! Can anyone tell me what to look out for? Tips for decreased KR? What is a wideband? I saw numbers ranging from 875-950 on this site, sorry I dont have more info. Timing? What is the MAF reading supposed to be? I just would like to get my feet wet before I become overwhelmed! Thanks for your time!