Allstar Performance Spark Plug Indexing Tool

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Indexing positions the ground strap of the spark plug properly for best piston dome clearance and un-shrouds the electrode for a more even burn and possible gains of 5-15 horsepowe r. Works with flat gasket or taper seat 14mm spark plugs. Includes instructions.Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard-to-find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance.Product Description: Spark Plug Indexer 14 mm Flat / Tapered Plugs Plastic Black Sold Individually Show more