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    94 gulfstream prop question

    My 94 gulfstream has twins yamaha 150 saltwater series 2 stroke.Only getting 4800rpm at wot.Acceptable range is 45-5500,so I am at low end of that.I have Michigan Rapture 14.25 x 17 stainless props.Was told these have extreme cupping and they usually pull more rpms than a regular SS prop of same...
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    What props you have on

    Your 232 Gulfstream with twins?I have a 94 with twin yamaha 150 2 stroke.Little low on rpm at wot with Rapture ss 14.25 x 17.Heard the ruptures do have a lot of cup and typically run lower rpm than same size regular ss prop.What do you guys run?I get about 47-4800wot and about 38-40 mph.Book...