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Spark Plug Gap

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Hi All

 

Does anyone know the recommended gap for the colder NGK PFR6B-11B plugs? Stock gap appears to be .044 but for higher boost (15-18psi), some recommend .035. Any thoughts on the correct gapping for say 14psi?

 

Cheers

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    For the 11b's i've never really known them to gapped other than as they come. But some have re gapped the 11c for higher boost.

    I'd leave as is, i run them like that @18psi.

    smithy

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