I'd repost this in the "General Discussion" part of the forum, you're likely to get way more responses than in this part of the forum. How fast did the 200 get you on your 223 Tournament? I imagine it'll still work but likely will put the boat at a maximum speed probably in the 35 mph range. If you boat with just yourself or another person or two and a light amount of gear then you probably wouldn't have an issue. If you're constantly with 4-5 people and a ton of gear, I think she'll struggle to get up on a plane and stay there. Especially if the outboard has the incorrect prop on it. I'm sure a few others will come along at some point and give you some specific numbers, but it's going to depend on more than a couple of different variables.