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spark plug heat range
https://slantsix.org/forum/viewtopic.php?t=46480
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Author:  terrylittlejohn [ Wed Sep 28, 2011 3:49 pm ]
Post subject:  spark plug heat range

what heat range plug are you using with 10 to 15psi of boost?

Author:  Dart270 [ Thu Sep 29, 2011 1:28 pm ]
Post subject: 

Seymour gave me a set of Autolite 63s that I've had in the turbo Dart since it's 3rd day of running in June. 9psi boost. No plug related problems or detected detonation. Mileage seemed unaffected.

Lou

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