Prosthetic valvular endocarditis (PVE) develops in 2 to 3% of patients within 1 yr after valve replacement and in 0.5%/yr thereafter. It is more common after aortic than after mitral valve replacement and affects mechanical and bioprosthetic valves equally.
Ray-my buddy has a 20ft Aquasport with a 115hp on it and it gets up on plane nice and rides real nice (200hp is way overkill for that boat-nevermind gas prices!)I really like his boat, it is a bit much for one guy to handle trailering, launching,etc. but besides that good boat!!he 20-foot aqua sport is a nice ride. I looked at almost every boat in the 17 - 20 foot range. Two points I found, Boats are a matter of opinion so get the one you like, and don't buy used unless you need to for $. I would sacrifice a used upper class boat for a brand new mid to upper class boat.
I have a heavily modified 25hp motor and it will hit aprox 58 mph. I have seen 50 hp motors on them but it requires someone to hold it up when you start or you will sink. Expect 30-40mph with 25hp. Remember fast will come from a race prop you can get one used at the local races.or your speed of boats section this does 20.2 mph (GPS verified) with me in it (235 lbs) and I used 7/16 plywood instead of 1/4 therby adding an extra 35 - 40 lbs to the design. Power was an old sears gamefisher 9.9 with a plastic prop.