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Re: spark plug gap 350
The only thing that matters for the spark plug gap is the ignition system. .045 is where it needs to be for an HEI. Any larger and the coil and module get overworked and a smaller gap will hurt fuel economy.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.
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