put your exhaust and cooler on. dont bother with inectors or plenum (if you got the plenum it would need to be modified then also custom piping for the cooler, most cooler kits are to suit the standard style plenum) injectors are plenty for what your chasing and you can always buy a fuel pressure regulator n run more pressure increasing the output of injectors
go grab a bosch 040 or gtr pump, new K&N element filter for your airbox, some new spark plugs gapped down to .7 (iridium are ok but a waste of money better going the cheap copper plugs and changing them every service) then call jeff from 'the speed lab' and get her booked in for a remap tune her at 13psi this should give you enough poke to keep you happy for a while