Please Help ! I\'m Confused I have a 1987 chevy blazer 4x4, 305 CID motor equipped with TBI. It was running perfect then one morning the motor will turn but won't start. I have replaced the Distributor Cap, Rotor, Coil, and Electronic Module on the distributor. The plugs and wires are still good. And there is still NO spark. I also noticed that there is NO fuel going into the TBI. I'd appreciate any advice from anyone out here. Thanks!