You would probably have to replace your computer and harness, because fuel injection to carbed is a pretty big change.
Im no expert on the subject, but my hunch would be you should find another FI engine, maybe try to trade the carbed one?
Given the choice, I would take FI over carbed any day. Carbs just dont run as good out here, too many mountains, they dont like the change in air density with the elevation changes or something like that.