It started life as that file. With just your standard changes to idle, braf, start up air, ect?. To get it to run with the cam. Then started working on the maf and ve table to get fueling correct. It has done this stumble since day one. Ive since changed all of the other tables over from the 5.3 tune just to try cure it. Turned off the o2s and switched it to sd os just trying to see if there was any sort of change.