Just a wild idea I'm getting

I concern with the carb on top idea. I think the cut and direction on the rotors in blower are shaped to draw from the rear and force downward. I think the carb on top would have it forcing the mixture to the front of the case?

Either way, think about building an an elbow that connects to under side of carb, and then over to inlet of blower. The carb would sit between master cylinder, and blower inlet?