Rubicon3303 has a real simple setup on his Rubi, he will chime in and give you a hand, he didnt need to jet.
all you need is a shop vac hose take old snorkel out and the shop vac fits right in the stock air box. And when you take off the front end there is a channel the runs up the side of the bike up and around the front then i just pulled it between the gas tank and handle bars. It works wonders ask anyone that rides with me.