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Old 11-19-2014, 10:52 PM   #4
Don Rogers
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Join Date: May 2010
Location: Wildwood, MO. (near St. Louis)
Posts: 1,792
Default Re: Strange Sparkplug ????

Thanks guys. I knew that it wasn't T or A or early V8, but what is it?? The bottom base is identical with H10 or H9, but the porcelin is unique.
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