how about using a Vortech 12:1 FMU and a larger fuel pump for higher pressure. the FMU sells for about $85 on ebay, the only upgrade I would do is the rubber fuel line hose, convert it to a SS braided hose. The OEM rubber hose just scares me, cause it sits right on top of the exhaust manifold.

If you want a simpler way of adding fuel you can try using Snow performance Meth injection kit, just use regular gas instead of methanol. it activates the pump from a vacumm switch. the pump is adjustable from 80-150 psi and you just use a mister nozzle after the TB. I think it's $300