need high and low rpm ratings for 1976 Merc 850

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Posted by Gordy Stanton ( on July 15, 2005 at 17:26:41:

I am trying to size a prop for my 1976 Merc 850 85hp.
I need the high and low rpm ratings for the engine. Also I will take any you might have for this engine on a 19ft fiberglass open bow runabout as to prop dia cnd pitch.

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