I have a 1969 plymouth sport fury convertible. 383, pertronics ignition, everything else is stock. The car runs awesome. I ordered in a new windshield wiper motor today and installed it. So cool to have working wipers that park properly. Went to start the car and it kicks over like it wants to start, but wont catch and keep running. I tried replacing the ballast resistor with the spare and still the same problem. Any ideas?