HONDA T-REX 750

The Rex Wolfenden T-Rex Honda CB750 based racebikes have been highly successful in Australia.. their motors are 1000cc and about 120hp

link: http://www.mctrader.com.au/news-and-reviews/article/articleid/72640.aspx

...and a video: http://wn.com/Historic_Road_Racing_TREX_Honda_Perth_Period_Four_Motorcycle