I have a 23 ft. Sea ray 1985 230 srv cuddy crusier 260 merc Alfa 1 out drive. My current prop is wearing out its old I think it a progressive 17 to 15 pitch 14.5 Dia I tried a 14.5 17 P and rpm's dropped to much 3600 boat is rated for 4600 wot
Has anyone played with other sizes 4 blades etc.
Thx
