I think the answer is yes and no. Yes because ram effect is present. No because everything is small and not designed to take atvantage of it. If you built a scoop that crammed air in you would have problems. Most 2 strokes have the carb facing forward as you know; we as a hobby would be having all sorts of fits if it was a problem. I would hate to have to have a plenum that would have to equalize any supercharging effect or multi jets to control the mixture at different speeds.