Comp-Arf or maybe the new AW Ultimate?? I am not sure on the weight and balance with the AW Ult but if you like biplanes that is the hottest biplane out!!

The new Thunder Tiger TOC Pitts is a monster plane that should take the 200 very well!! I just picked up a TT TOC 40% Yak. I am putting a 3W 210(2cyl) on it. The only planes I really found to handle the weight were the TT TOC Yak, Pitts; Comp-Arf 3.3m. My 210 weighs about 2lbs more than a 150-170. I am not sure what the weight is of the 200(4cyl).

3W makes a 4cyl 220cc, you might do a search on it and see what guys are putting it in??