Im looking for someone to either help me or point me in the right direction with tunning my truck. Its a 2006 silverado with a 4.8, BTR NSR cam i swapped in because the factory one got lobes worn off from lifter failure, headers with no cats, and a tbss intake and p59 ecm. The truck was "tuned" previous to everything i did and it ran like crap. any help is welcome. i dont have a wideband installed yet either, which im not worried about wot tunning at the moment since its a daily driver. This is the tune i have so far