Mark, One thing I could look at is that I had to move the coil off of the motor and on to the firewall for clearance purposes. Does the coil ground through its bracket to whatever it is mounted on? If so I could rubber mount it and run a ground wire back to the motor so it was not grounding on the firewall but other than that I am having trouble finding something to look at. If the coil does not ground through its bracket then this idea probably holds no promise.
Roy