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Message: <blockquote data-quote="Shinneryfarmer" data-source="post: 3851983" data-attributes="member: 46291"><p>Just look at it this way the gap as it gets wider requires more voltage to produce same spark. But at a point your limited on voltage to override this gap thus creating a weaker spark. Thereby producing incomplete combustion which uses more fuel to generate required horsepower. Now tighten that gap and you have a hotter spark completely burning all the fuel in the cylinder each cycle making 100%(or as close to it as you can get) available horsepower thus using less fuel. This also reduces stress on coils to produce the voltage to jump that gap.</p></blockquote><p></p>