Bill, You can see the picture diagram of the resistor set up on my web site and I just posted a memo last week of the wiring diagram also on the site of the relay that helps start the car faster. The blue yellow wire from the solenoid is what gives you the extra voltage on the left side of the resistor to start the car, after it starts the car runs on the white wire voltage from the main relay that goes to the right side of the resistor. Hope this helps. John Hervey http://www.specialtauto.com/engine.shtml << No juice is entering the coil. Didn't check the resistor, but I did jump the coil straight from the battery post. Using a timing light determined no juice is leaving it. Electronic ignition module is next in line -- where's it located, and what is the test procedure? Could I just ground the coil and test for output? >>