well, also, if you want 200hp (fly or whels?) I think you could fairly easily get 200 hp out of a b16, and thats the engine that is gonan rev the highest when built (unless getting custom stroke crank and custom length rods) even 200 whp is obtainable form a b16 (FI) maybe all motor, but would cost some bucks.
Ive seen a dyno of a crvtec fully built putting out 274 WHP but the link to it ws on crvtce and that site isnt up anymore. but it had JUN 3 cams and all EXPENSIVE stuff.