When you hook up your system, check whether the distributor requires a ballast resistor. Some - notably some of the Mallory units - will have considerably. I started and ran it without a ballast resistor. It ran fine. All of the old point style 12 volt cars were hooked up this way from the factory. Larry T.
Step 1: Determine if your car has a ballast resistor. Connect a volt meter to the two leads on the coil and turn the ignition to the “on” position. The Ignitor can also be installed in applications retaining the ballast resistor A. First, if you have an external ballast resistor or resistance wire, connect the red.