This is a picture of my old boat. It was able to reach 48mph, which wasnt to bad since the impeller on it was horrible. The engine was able to turn the jet at 4400 rpm which according to Berkeley the motor should of had around 310 hp.
Chevy 350 cubic inch engine
1.94 / 1.50 Intake / Exhaust Valves
Crane Max Velocity Cam Rated at 478 / 494 Lift
Edlebrock Performer Intake Manifold
Holley 750 cfm Vacuum Secondary Carb.
Berkley 12JC Jet drive