The demands for better emissions and fuel economy in the mid 1970s necessitated leaner fuel mixtures. These leaner mixtures required greater voltage and more spark to ignite. This challenge led GM ...

A ballast resistor is a resistor inserted into a circuit to compensate for different changes. Others might give a different answer to the question “what is a ballast resistor” like this: A resistor ...

Did you know that on engine will run with the ignition coil wired backward? It will, however, reduce spark energy and make the engine run sluggishly. So remember, unless you have on aftermarket ...