OptiSpark. The name alone is enough to give '92-'96 Vette owners the jimjams and send even the most jaded auto techs scurrying for their shop manuals. Indeed, with the possible exception of the ...

As General Motors' flagship automobile, Corvette has always been the recipient of GM's latest and greatest innovations. Usually, this is a good thing. Occasionally, however, the latest isn't all that ...

The Pro-Billet distributor line debuted in the late-'80s. It generally consists of a housing that's CNC-machined from billet aluminum, a coated main shaft that rides on upper and lower roller bearings ...

In the muscle car era, high-performance ignitions went from single points to dual points (for an extended dwell period), back to single points (simpler and still effective), and then to transistorized ...