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‘39 Merc All Terrain Vehicle???
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08-07-2018, 10:40 PM
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Tinker
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Join Date: May 2010
Location: MN
Posts: 7,053
Re: ‘39 Merc All Terrain Vehicle???
What kind of compression do you have on the merc?
What rearend do you have? 3.78?
Higher ratio will increase engine rpm and heat btw
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