Which came first, the chicken or the egg? It's an ageless debate, lacking a definitive answer, yet both sides are strongly supported with opposing theoretical views. Many agree that its automotive ...

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 ...

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 ...

Welcome back for Part 2 of tune-up tips for your older Corvette. Last time we talked about tricks of the trade when setting points. This month we will talk about setting ignition timing. The most ...