The Importance of Spark Plug Gapping
When adding a supercharger to a naturally aspirated vehicle or turning up the boost on your vehicle that's already supercharged, the spark plugs MUST be gapped accordingly.
The gap for a naturally aspirated combination is much larger than what needs to be run for boost. We also recommend a colder plug as well.
The NGK 6510 (LTR7IX-11) is a common plug for the Coyote and some of the other modular Fords.
Gap size would be dependent on your boost level and should be confirmed directly with your tuner!
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