Brand new out ran it today a new Country Clipper 72" Boss with a 37hp Kawasaki DFI engine! that is correct DFI!!!! I put this mower in a field that had not been mowed this year thick and tough and wow what a horse of a mower! I honestly thought I was going to break belts and the kaw motor just kept lugging! Amazing the power is way stronger than the carb version of this engine! I do not know about fuel economy yet but it should be solved with the DFI version! Best part is the DFI option on the country clipper is only a $400 upgrade!