I HAVE A 91 SILVERADO THROTTLE BODY CARBY SYSTEM. wHEN COLD IT STARTS NO PROBLEM, WHEN i STOP AND RESTART LIKE AFTER REFUELLING NO PROBLEM. WHEN I STOP AND LEAVE IT APPROX 20 MINUTES IT JUST MISSES RESTARTING AND SMELLS OF FUEL - FlOODED CARBY. TO START I NEED TO TAKE OFF THE AIR FILTER TOP, DISCONNEDCT THE LEADS ONTO THE TWO INJECTORS IN THE CARBY. IT THEN STARTS , BURNS THE FUEL AND CUTS OUT. I REPLACE ONE SET OF LEADS TO ONE INJECTOR START THE MOTOR NO PROBLEMS AND THEN PUT ON THE OTHER INJECTOR LEAD AND IT KEEPS GOING PERFECTLY. I HAVE REPLACED FUELPUMP REGULATOR, DISTRIBUTER, THE MANAGEMENT SYSTEM THAT PLUGS INTO THE SIDE OF THE DISTRIBUTOR, EVEN THE COMPUTER SYSTEM INSIDE THE TRUCK NEAR THE ACCELERATOR PEDAL, BUT THE PROBLEM REMAINS. HAS ANYONE SEEN THIS BEFORE OR HAVE ANY IDEAS TO HELP AS YOU CAN SE I AM RUNNING OUT OF IDEAS...HELP PLEASE.