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rotorwrench · 10-15-2019, 10:07 AM

I think the Champion X spark plugs made today are closer to the old Champion part number 25 and they are likely cooler than the old part number 30. Now days they just have the one plug.

10-15-2019, 10:07 AM	#19
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,431	Re: Model T Sparkplugs I think the Champion X spark plugs made today are closer to the old Champion part number 25 and they are likely cooler than the old part number 30. Now days they just have the one plug. Last edited by rotorwrench; 10-15-2019 at 10:39 AM.