I thought this day would never come. The joys of doing something no one has before, or that there are no plug-and-play kits for, is that it often takes a great deal longer than you can imagine.

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 ...