This is project W350 Crew Cab. I have been restoring the truck since 2005 and had stripped the truck to its frame and the engine to its short block. It is a 1997 Cummins 12V parked in a 1980/1993 Crew Cab body.
This was the engines first start after being built with head studs, DDP stage 2 injectors, PRD HX35/16cm primary, HT3B/26cm secondary turbos. Also done is many internal P7100 pump modifications to increase fuel flow.
This video is to demonstrate how a freshly modified engine can run away and how to choke it out with a board.