COPPER CORE SPARK PLUGS TC/XL HIGH PERFORMANCEACCEL C Cut Copper Spark Plugs creates a considerably hotter spark that lets the flame expand more rapidly in the combustion chamber Allows spark to expand directly above the midpoint of the electrode core preventing the spark from being shrouded by the ground strap Gives the flame an unblocked area to grow creates a larger flame front for a more complete burn Reduces excess heat absorption of the electrode and ground strap, also known as the