Re: Estimated cruise speed
I have an older carbureted 454 crusader (350 hp) in my '79 23' inboard w/ a 17x17 prop. I have had the boat up to 37 mph with the current, by myself, and half filled with fuel. I don't see how you could go much faster anyway, as the boat becomes a bear to handle.
For cruise, I get between 26 and 29 mph at 3,000 rpms depending on current, wind, loading. The 4-barrel kicks in at around 3,100 rpms so I don't go over 3,000 much.
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