if your wiling to spend another 300-400, pick up some...

450cc fuel injectors off any 1g DSM - $50.
Walbro 190 - $80
Uberdata kit from moates.net- $15
and spend the rest on someone to chip your ecu (unless you can do it yourself, theres plenty of write-ups and is actually very easy), dyno time and some local uberdata tuner to tune it.