1973/450sl
 

I had posted before about the car not starting after using a dc air compressor through the cigarette lighter. I took the car to my indy and he says I reversed the polarity of the cars electrical system and shorted out my Petronix. He did get the car started and I drove it home . Now it starts with my foot on the gas pedal and runs rough. I did notice 3 wires disconnected from the ballast resistors. Looks like my indy is over his head. Any ideas guys?