Dunno how you are for budget on this, but this is a nice setup here:

http://www.amazon.com/K-N-85-8921-Un...N+Weber+Plenum

And add either a basic cone filter or:

http://www.amazon.com/RC-5052AB-Univ...old+air+intake

Not the cheapest route, but allowing the engine to breathe better is never a bad thing. Both in terms of MPG as well as Hp.