There's a tiny silver can on the side of most distributors that is easily the most misunderstood component of any distributor-based ignition system. Feared by many, and ignored by many more, the ...

Both initial ignition timing and total ignition timing (advance) are usually expressed in crankshaft degrees as read at the harmonic balancer. These values define where the spark plug fires in terms ...

Get a trick advance kit for your distributor and your car will have more power and get better gas mileage! Does this sound like hype, or is this the promise of "free horsepower"—with the only ...

Let’s start by looking at the evolution of the GM High Energy Ignition (HEI) system. This system became available as an option in 1974 and was standard in all 1975-and-later vehicles, with the ...

In my 35-plus years of working on cars, I have encountered nearly every frustrating troubleshooting problem in the book. Part of the issue stems from my affinity for old Jeeps and classic cars, which ...

There appears to be a surge of misinformation on the internet claiming that anyone who doesn’t hook their vacuum advance line to manifold vacuum is an incompetent tuner. Unfortunately, this can lead ...