More Boost...HELP?

[SuperCharged00GT]

i have a 00 GT it has a saleen speedlab supercharger running 6.5 psi, 30# injectors, motorcraft fuel rails, the computer has been custom tuned by saleen, and it also has a intercooler, high flow water pump, steel fuel lines, saleen heat exchanger, saleen intake, 2 saleen 5.6" cooling fans, and motor craft fuel rails.

I want to up the boost, i kno im goin to need to up the voltage on the fuel pump in order to pump enough gas for it, and im pretty sure the 30# motorcraft injectors can handle more boost as long as i up the voltage on the fuel pump, i was thinking of purchasing steedas high voltage fuel pump.

I kno i will also have to have the computer reprogrammed, and of course change the belt, and boost pulley...i would like to run at least 9 psi...with this setup n the few mods ive listed that i will have to do...will i be able to run 9psi, or is there more things that i will need to change/add?