> I'm assuming if there is no air mod done, then there is no need to do anything > to the fuel management system, is that correct?
Yes. You may want to check into marbleing the reed valves. Check here, it's a great resource:
http://www.gadgetjq.com/gadgetsfixitpage.htm
In the "Bolt On Harder" section you'll find the instructions for disabling the reed valves though there is absolutely nothing "hard" about it.