V-Twin now has reproduction Globe spark plugs. These were used by H-D 1936-1939. If you are putting your bike in for judging you should buy a set of them.
http://www.vtwinmfg.com/webapp/wcs/s...102_3408357_-1
http://www.vtwinmfg.com/webapp/wcs/s...102_3408357_-1
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