I recently bought a 97 Grand Prix GTP as a project car and I'm suddenly having flooding issues. New plugs, wires, coils, alternator, supercharger, water pump and pulleys and all worked fine initially. Started the car 20+ times with no problems then suddenly it started running rough and died. Started and ran for a bit then died and wouldn't start. Pulled some plugs and they are swimming in gas. Thought it might be the crank position sensor messing up timing so I changed that and the car started right up but then died and I am again having flooding issues. Ideas?