for stock system the injectors won't really help you much. teh stockj tuning actually runs the car a little bit rich. you can however modify the extra tb to flow better and then swap it on to get a little "free" hp gain.
best freebie you can do is to bump up the base timing about 4 degrees. it dramatically increase throttle response and power.
hit me up on AIM and i cna explain more free/cheap mods to get yoru car moving.
later
tim
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