all you would have to do is work the pulleys so the belt sits under the pulley instead of over it. may take a couple fabbed brackets, but thats the easy part.

 

Sucking the air out of the engine to produce the black hole affect has been talked about a few times. Kidding of course.[:'(]

 

all im saying is dont let the blower stop you. with belt travel in a constant direction, working the belt over or under the pulley turns the pulley in opposite directions. therefore you can spin it the proper direction regardless of how its mounted