Originally Posted by three-rex
They seem to suggest 25 or 26 pitch
I bet it would only get 2500rpm with a 25 or 26, should be revving to 5500 - 6000
I would guess a 17 pitch ally or 18 pitch stainless, best to confirm with Jason @ Ribcraft or hve a look at Jools site www.ribpanther.co.uk
(ribcraft with 90hp merc 4 stroke)
Drop Ian a line on 07947807349 and he will get you a new prop cheeper than anyone else, hes got loads of props for merc/mariner in stock.