What prop size 340 2000

[Hoo'sdave]

I have a 340 with 454s and cruised 21kts at 3600 rpm,WOT 4400rpm.Clean bottom and cruise depends on wind and waves.3 blades system now

 

[KayKook]

Check the Sea Ray recommended prop chart for your boat for a start. Your cruise speed is a little high on RPM, but WOT is right where it should be.