LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What to gap spark plugs for best fuel economy?

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Old Aug 25, 2006 | 10:45 PM
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1LESSZ28's Avatar
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Question What to gap spark plugs for best fuel economy?

NGK TR55GP (platinum). Wondering if running a smaller/larger gap would help mpg? Anyone have these plugs how do you like them?
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