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I need a cap and rotor for a hei distributor, and I saw on ebay for $20 + shipping I can get a clear (see-thru) cap and rotor, which seems cool. Has anyone used one of these? Do they hold up?
 

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I've had one on my points distributer in my Pontiac for years.......works fine, if it is a good quality cap.
 

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The important thing about the quality of caps is the internal ribbing between the terminals. Lots of aftermarket caps have less than a stock cap, or even none.

Spark misfire travels on the surface of the plastic and the ribs make the distance longer. ;) Usually about twice as far.
 
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