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Old 11-30-2019, 11:47 AM   #22
dmsfrr
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Join Date: Aug 2012
Location: Abq, NM
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Default Re: '55 F100 new project, new member

Those look like anti-fouling inserts, to help keep oil off the sparkplug tips.
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Last edited by dmsfrr; 11-30-2019 at 12:41 PM.
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