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 ...

Ignition systems have one of the toughest jobs under the hood of vintage Mustangs. They handle the very precise job of firing spark plugs in concert with the engine's crank and cam timing events. It's ...

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 ...

Ignition timing is typically split into three types. The first is initial timing—that is, the amount of spark lead that is set using a timing light (aimed at the harmonic balancer) with the engine at ...

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 ...

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 ...

Let’s say you want to check the total timing on your engine but all you have is a fixed timing light and there are no degree marks on the balancer. No problem – you can make your own timing tape using ...