It wasn't all that long ago that GM engineers designed the original HEI system to replace the decades old points-type ignitions. In the mid-'70s, leaner mixtures demanded greater voltage and more ...

If any part of the distributor system gets spoiled, the car can exhibit problems in starting, accelerating, and even misfiring, among other issues. A distributor cap is one of two vital parts (the ...

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 ...

MSD is a name that's synonymous with high-quality ignition components. With products ranging from coils to rev limiters, the company is probably best known for its array of ignition control boxes that ...

The ignition (or distributor) cap is where ignition wires that run to the spark plugs receive high-voltage current from the ignition coil. Metal contacts in the cap connect with contacts in the ...