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 ...

We can hear the howling already. "Why do I want to put some junk GM ignition on my (insert AMC, Mopar, or Ford)?" The answer is: Don't—unless you like the idea of a higher-performance, more-efficient ...

High performance is all about horsepower. But even the ultimate in heads, compression, cam, and the rest won’t make power if you can’t light the fire. Ignition systems don’t make horsepower, but a ...

Racers are famous for being able to break just about anything. And not surprisingly, we're no different from them. A perfect case in point is our dyno test mule engine. We recently used it to test ...

Chemistry is a subject that can be a confusing subject, especially when it comes to the differences between materials like MSD’s Spark Guard and a completely different chemical paste often used when ...