4 Blade props 320 Sea ray sundancer

[Siboatguy]

Been thinking about adding 4 blade props I cruise now at around 26mph and about 23 knots... Was curious how much more cruising speed i get out of it.... With the 3 blade props i notice with 6 people on i gotta run at 4k rpm to 4100... Don't get me wrong at 3800 to 3900 still on plane but the bow is sitting high and i think I'm burning a lot more fuel... And info would be great...​

 

[Ididntdoit]

search is your friend......there are quite a few threads on this site of people that did EXACTLY this on the same boat and provided before and after numbers