Editor's Note: Way back in March of 1998, GMHTP ran "Opti-Spark" by Ray Bohacz, an engineering-level dissection of GM's Opti-Spark distributor. This evolutionary ignition component was a bridge ...
The ignition system is one of those entities that is overlooked, taken for granted and passed by until something goes wrong with it. Consequently, many enthusiasts don't fully appreciate the ...
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