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prop size and speed 201gs

jt3kids
jt3kids Member Posts: 15 ✭✭
I was wondering what prop size anyone is using.  i have a 2004 fundeck, I/O 5.0.  201 GS. carb.  (305) GM engine.  s outdrive with 1.60 gear.  Im loosing about 400 RPM and thinking i might have screwed up prop size.  although from what i hear the  one im using is correct.  14.5 x 19.  If i went to a 17 pitch i could probably reach 4800 but would that give me more speed?  what speed is anyone else getting with this setup? I can get about 40/42.  thats about it, but i'm also only getting about 4200/4400 rpm.  thanks