Get one of these. Pep Boys carries them, too.
http://www.summitracing.com/parts/vpe-2164?seid=srese1&gclid=CLXVrLXh_sYCFQczaQod3E0FQQ
Get a cross fitting, run the down tube to the crank case, the two side tubes to the two heads, and put the vent filter up under the tank off of the top...