WOT speed on a '83 20' SF w/200

[Blue_Heron]

should have got a yamaha 200, you could have a 50+ boat with a 175 and a clean hull.

Yamaha makes a good dependable outboard. So does Mercury.

The boat came with the Merc already on it. If I were starting from scratch, I might go with a Yami. If top speed were my only consideration, I'd stick with the Merc. All that being said, a 175 Yami ain't gonna be faster than a 200 2-stroke of any make. Horsepower is horsepower, it don't matter what color the engine is.