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DBSHELTON · 11-20-2020, 07:20 AM

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What number 14mm plug would be considered as a stock normal heat range?
What about with my 6:1 head and Model B carb? Possibly go 1 heat range colder?

11-20-2020, 07:20 AM	#6
DBSHELTON Senior Member Join Date: Sep 2019 Location: Kountze,TX Posts: 313	Re: 14mm Plugs Sponsored Links (Register now to hide all advertisements) What number 14mm plug would be considered as a stock normal heat range? What about with my 6:1 head and Model B carb? Possibly go 1 heat range colder? Last edited by DBSHELTON; 11-20-2020 at 09:03 AM.