More accurate for air/fuel mixture
Better with emissions controls (if its an issue)
Uh I can't think of anything else.. lol im sure there are a lot more reasons
Cons:
Lots of wiring
Common failures in sensors and other electronics
More parts you gotta get
More expensive to build up (Injectors, Maf's, Tuning..)
Harder to diagnose problems (For most people)
And im sure there are more also..
As for carbs I know nothing about them but im sure someone can chime in and tell you everything about them
Im probably not much help, but no one else posted so I figure I could help a little bit
the wiring is the only thing i don't want to deal with...hahaha but i would much rather have the EFI then carb. i have one more thing to ask i was told that i could blot the T5 trany up to the 5.0L is this true and if so would it just tare up the trany?