My truck is as stock as the day it rolled off the lot new minus a 4" exhaust and custom tune. It dynoed 435/767 and ran a 13.9 @ 97. My et is not as good as it could be due to leaving easy and getting high 1.9-2.0 60' times. Depending on if I use trap speed or et with my weight, the hp...
03 6.0 ecsb 4x4. Only mods are 4" tbe and sct with the looney tune. Still have stock bolts and factory egr system. Dynoed 426/750 and ran a 13.90 @ 97. I had a high 1.9X 60' time, I think with a little practice and a better 60' time I can get it down to a 13.7 or so.