your options are to get either the s-fmu from vortech, or build an 8 injector system which would consist of: 1:1 regulator(aeromotive 139.99) 034 extra injector controller (around 300ish) extra fuel rail and higher cc injectors. basically, youll use your stock injectors for the primaries, you will have a near stock idle, but have somethin like 330cc injectors for the secondary rail. the 2ndary kicks in once you hit boost, allowing you all the fuel you will ever need. basically do the math stock(220cc i believe)plus 330's and thats 550cc of total fuel injection at boost. hope that is of some help

heres a link for your viewing pleasure of building an 8 injector fuelsystem http://www.2gnt.com/www/corbin/8inj.html