scottbit,
The ignition resistor reduces the voltage to the coil to around 8 volts while the truck is running. When you start the truck, there is a switch on the starter, or sometimes in the key switch itself that supplies full battery voltage to the coil. This makes up for energy lost to the starter and gives the ignition system a little extra oink for starts.
You should have two wires going to the key side of the coil, OR, two wires on the coil side of the ballast resistor. If you have a stomp starter, there might be a small lug on the side of the switch that supplies this battery voltage to the coil only when starting.
Stuart
