you can use the gtir maf, or you can also use a 300zx or even a ford cobra unit.
youll probly need an sr20 radiator, ignition(and ignition bolts), axles, and the gtir harness( if you dont have one already)
also you should check out jim wolf technology, theyre very reputable and the can reflash you ecu for this particular swap.
just my .02
