Hi Ive got an 1988 28 ft. boat with twin 470 4 cyl. any idea what ratio the apha drives are
boss434 Cadet Joined Aug 10, 2009 Messages 8 May 30, 2011 #1 Hi Ive got an 1988 28 ft. boat with twin 470 4 cyl. any idea what ratio the apha drives are
Bt Doctur Supreme Mariner Joined Aug 29, 2004 Messages 19,494 May 30, 2011 #2 Re: Outdrive ratio 1.84(6) is the standard for those engines
