As daz sed,
The most important thing about New age high flow inj, is get them, Flow checked and matched, as the quality of them is ment to be real bad.
I run a internal gt30, (AET Turbo's) is a true 480-500 bhp turbo on a 2ltr YB.
you will need to run 2wd ex mani, and if you want 450-500 bhp, and 4 inj's you will need small turbo escos inlet as is good for 500bhp.
A std ecu can be mapped, and will be fine for the job.