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Re: Spark plug gap for a '75 350 please...
you will cook a stock hei if you run a gap bigger than .045. the coil and module cant handle it. wider gap means more electricity to jump the gap.
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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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