I would be concerned because you will more than likely will run lean, if you can afford to buy the PCV with AT now it will look after your fueling, as you change things it will alter to compensate and you won't have to worry it might even make the bike run smoother and add a little power as well while it is still relativly stock
Oh and if you really want to piss your hardley mates off get a set of RX 4040 instead of the 2780 everybody runs ( see my bigger is better thread)