A good nozzle system (Fogger is a NOS trademark, the generic term is a direct port nozzle system) will run you $800-1000, plus labor if you pay someone, or a considerable amount of time if you do it yourself. Also, it includes drilling holes into the intake manifold. If you're not planning on running nitrous permanently, I would recommend against a nozzle setup.
A basic EFI system puts the nozzle in front of the throttle body. A 150hp kit will run around $500. There is really nothing wrong with this type of kit, although some people have an unnatural fear of spraying fuel through the intake.
The intermediate option is the plate between the upper and lower intakes. Top Gun offers a kit for the Edelbrock Performer intake for $629. They don't have a standard plate for the Victor, although they will machine an aluminum plate for just about any setup you want.
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Moxie Racing
The Nitrous Oxide Information Site