thats a sk class boat (unlimited)I raced SS 427 BBC, 17' flat bottom V drive. The drive shaft passes by your shoulder then goes into a gear box then back out to the prop. You wear a parachute so you can get tossed out. No seatbelts (they were not allowed) oh yes you go over 120. Pasagrile to Clearwater was a hoot. This was before wake zones and exhaust restrictions