Would it be recommended to drill air releif holes in the bottom of the stock air box on the side that the air flows in to help with increased air intake? Or would it be more wise to just go with a air intake filter.

Well I will tell you what I did. I bought some "intake hose" from checker auto parts and made my own intake. The hose attaches to the back of the intake box and runs down to the simulated air scoop. I can do a write up on this if you want, just email me :)