If you've been readingHPPfor any length of time, you likely recognized the importance of spark advance. Over the years we have reported through dyno and/or dragstrip testing the benefits of optimizing ...
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 ...
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