Haveing some rich 5.3 running issues...first off was stock motor, pump etc ran rich then and now still rich after new fuel pump shaved truck intake msd wires, btr stage 3 218/224 113 +3 cam, btr dual cm .660 springs, 7.40 cm btr pushrods, ecm was a stock base tune from coolmike on frebay.. has 02s delete etc.. not home roght now so cant post a log but have been getting it better and just hooked up aem wb first readings was mid 12s after messing with afm etc etc got it running better more power better rev etc and im now in mid 13s but still running rich any info or anyone that has a similar tune file for my kinda setup i could copy n play around with