Thread: NGK spark plug heat range
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Old 07-26-2013, 12:27 PM
CobraV8 CobraV8 is offline
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Default NGK spark plug heat range
Anyone has experience with this manufacturer? What heat range should be used as a starting point for 9,5:1 compression with Ford Duraspark Ignition?

Simon
Last edited by CobraV8; 04-11-2024 at 06:25 AM..
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