cb wrote in
:

I have an '04 270hp VolvoPenta 5.0 on a 21.5' FourWinns Funship (4200
lb boat) w/ 19" prop... turns 5000 rpm at WOT and gets to 51 mph with
a medium load... exactly matches what the dealer and manuals say it
should. I cruise at about 27-28 mph at 3000 rpm.

You dont say what speed you see at WOT. I'd suggest trying the next
higher pitch prop, should drop your R's by about 150-200 and maybe add
a couple mph.
...cb


I would say that the speed is a bit low too. Low 40's was the top speed.