carb to fi swap

I got a question is it posable to make a carberated mazda into a fuel injected mazda by switching the heads and intake? i think this is posable if not tell me what i can do to make it happen.

Which engine do you have? The 2.2? If so theres no need to swap the heads, you can either find a fi b2200 and swap the intake, wiring and ecu to your truck or you can do something like in this thread using Mazda car parts:

ok that sounds good thanks