So the company I work for just rebuilt a truck it’s got stage 1 injectors,cam,turbo and a fass fuel system. All new fuel lines. On a hard pull loaded it runs good for a couple seconds until it builds boost which wraps the 45lb boost gauge then starts shuttering and sounds like it’s running dry then if I get out of it and back in to it it still does it. The tune in it is the 550 hot tune. Any help would be apreciated.