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 ...

In this age of electronic fuel injection and ignition it’s hard to believe there are still some running around with a points-trigged ignition system. The concept of breaker-points ignition is all ...

And there's a lot that you can do with only the simplest of tools (Fig. 1) to see that your distributor is in top condition. Think of your distributor as an infinitely accurate electric switch. It is.

If you're a follower of the "How It Works" series, you've been learning the principles of what makes a car run. You've boned up on the four-stroke cycle, valvetrains, cooling, lubrication, and ...