You really do not want a cold air system. On a gasser ... ok... but not when you are using heat from compression to ignite your fuel air combo.... Why do you think block heaters are used in the winter ..... or glowplugs most of the time ? Or heated intakes on my Ford tractor ? Really a waste of your money and time.
Do the math on how much more air you can get into the system if it were actually cooler... a gasser is so much less efficient than your 22 to one compression ratio and using a spark plug to ignite the mixture... very different... this is my last word on this subject. You have SO much else which will improve your car to concentrate on.
If on the wild chance you actually made more power with a cold air system... it would be TINY...AND you would have to change your gearing in order to take advantage of it.