3406e, 550 with the fueling tables turned up a little. Actually its my dads truck. He said there is a guy with a newer pete with a factory 600 CAT that can't ahng with him on the hills, said the pete had 74K, while dad was at the limit with 79.5K and as close as the pete got was his hood was even with the door before dad started pulling away from him. That was the second time the same guy had tried to out run him. He is looking at getting the pittsburg power chip, and an upgraded turbo. I'm also trying to talk him into getting the turbine housing and exhaust mainfold ceramic coated. I think he might just do it.
On edit: Forgot to ask, but what are you running Stray?