I bought a 68 Skylark and it has an issue that I am trying to figure out. The light switch burnt up and took out the ignition. I replaced the switch and the burnt wires. Before I started the car made sure the fuel pump was working. It was, but after I stated the car it ran for a few minutes then stopped. The fuel pump stopped working. Any ideals? The car is a 350 and has an MSD ignition with fuel injection.