Definetly low on the rpms. Not sure of the hp on that engine but 4800 max
wide open would be right.
Let us know what prop you are running (size, material, # blades).
Also, have you done a compression test on the engine.

--
Tony
My boats and autos - http://t.thomas.home.mchsi.com



"Glenn" wrote in message
om...
I have recently purchased a 1984 21' Century 4000 cuddy. Nada listed
the engine as a 260hp not sure if this is true...The engine says 464
on it. First does anyone know what HP this really is. I get about 3200
rpms wideout and only 25mph with 3 people in it...this does not seem
right for a 260hp engine with a boat that weighs 2800lbs. Any info
would be helpful. The tach is brand new