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Old 08-16-2020, 06:58 PM   #17
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Join Date: Mar 2017
Location: southern California
Posts: 725
Default Re: measure gap between rotor and plug posts in distributor cap

Originally Posted by Purdy Swoft View Post
The spark gets hotter when it jumps a gap . Just a way to get hotter spark for free if you want it . Of course an original model A doesn't necessarily need hotter spark . Hotter spark can be of benefit with modified engines .
Purdy is right, as usual. "Air gap type" Spark Intensifiers work on the same principle.
I'm not sure the increased hotter spark is free though, it is a little bit harder on the ignition components. If you have Quality healthy parts, there should be no problem.
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