I did the PP powerjection 3 and it is by far the best thing i've put on the car, but i think the OP is thinking of using Magnum style efi controlled by ez efi.
JMO: Great idea in theory, but the magnum throttle body has cfm limitations. Also the ez efi itself is a limited efi system. NA only, no real tuning options other than the self tune.
The money you'll spend to get that together will be equal to or greater than the holley avenger equivalent and you'll get all the ez efi benefits and none of the drawbacks.
