There is only one way to find out for sure. Many Street Stock racing classes limit the ignition to stock-style replacement parts. For most Chevrolet and Ford engines, this means an HEI distributor is ...

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 ...

Around 1975, General Motors made a significant advancement in stock passenger ignition technology: the High Energy Ignition (HEI). One of its major features was installation simplicity. The coil was ...

Corvettes have had electronic ignition systems for over 40 years, starting with the powerful, dependable Delco HEI (high energy ignition) system in 1975 models. Prior to that, nearly all Corvettes, ...