Truck ran fine when i bought it. Developed a issue shutting down when coming to a stop. I replaced all vacumm lines one at a time new EGR new fuel pump new fuel filters and air filter new plugs. Getting fuel to bothe barrels now and get spark but truck runs like crap now and shuts off when you let off gas has a squeal when you pump gas to keep it running like a belt slipping adjusting carb doesnt help. Timing belt and sprockets look new im checking timing tomorrow anyone have similar problems? Or suggestion on what it may be?