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rick r · 09-14-2015, 06:29 PM

If you are trying to increase the comp. ratio, use the Ford EAB heads. They have a smaller combustion chamber than any of the Merc heads.

09-14-2015, 06:29 PM	#5
rick r Senior Member Join Date: May 2010 Location: Woodville Ontario Posts: 227	Re: Identifying a Cdn Mercury Flathead Heads If you are trying to increase the comp. ratio, use the Ford EAB heads. They have a smaller combustion chamber than any of the Merc heads.