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  1. Spark Plugs and coil help

    General Magnum Discussion
    Looking to upgrade my current 2005 R/T coil setup to a newer harness and 5.7/6.1 coils and new spark plugs (I know will have to upgrade the valve covers from the aluminum ones to current plastic/composites ones). What is the best spark plug to go with? Is it the Champion copper OEM ones or...
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