At some point in the mid 1970s or so, GM (with Delco Remy) came up with a new electronic ignition system known as HEI or High Energy Ignition. We've touted this as an upgrade for many engines in ...

There are instances where OEM design is so good that it lends itself to a broad range of applications within the high-performance aftermarket. Some good examples are the Mustang II frontend, Corvair ...