Side gapping your car's spark plugs could result in some modest performance gains. Here's what it means, how to do it, and ...

One of the best ways to gain automotive knowledge is simply by asking the two-word question: “What is (a part, theory, thing)?” and locking in the definition after it is given. We’ll take a flier and ...

In this video, I show you how to test spark plugs and coils on any car, even if the spark plugs are recessed or hard to reach. Whether you're troubleshooting engine misfires, poor performance, or bad ...

Gasoline internal combustion engines need three fundamental things: fuel, oxygen, and spark. The sexy aspects of modifying cars are focused on the first two elements: Double Pumper carburetors, ...