What Are Headers Worth?
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When choosing headers, all the power in the world won’t help if the plugs don’t clear the header tubes. The best way to know for sure is to find others who have run these headers on a similar car. Unfortunately, not all headers are designed to work with angled spark plugs. If the header is an older design, often the angled plugs will crash into the header tube. Sometimes you can clear a spark-plug boot by using shorty-style spark plugs from ACCEL or Champion. View Related Article
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