I would agree.
Fuel injection is superior in all ways to carb, except 1, user knowledge, but that is something you can change
We know more about carbs for one simple reason, we had to work on them ALL THE TIME, lol, with repetition comes knowledge, and a certain comfort level in how they work.
Fuel injection is reliable so rarely needs any attention, but when it does we have to learn from scratch, and there is a lot to learn, just like first time with a bad carb.
Fuel injection requires a computer of some kind, to adjust air/fuel mix on the fly.
Carbs just used Jets, the more air that passed by the Jets the more fuel was sucked out, pretty simple setup, also not to precise, lol.
The computer needs sensors and controls to calculate, and implement, air/fuel mixes accurately, and than means wiring and more parts.
So it is no small step to go from carb to EFI
Thankfully Ford has done all the hard work for you, you can buy a 302/5.0l lower and upper intake with injectors and sensors, 5.0l computer and wiring.
If you want 4x4 then transmission needs to be for a 4x4, can't convert an automatic 2WD to 4WD easily.
C4 is fine to use, no computer control is needed.
I think C4/C5 were the last Ford automatics that had detachable Bell housings, without having to do a full rebuild that is.
C6 and AOD had integrated bell housings but also didn't need computer control.
If you use any of these, with EFI, then you will want an EFI computer from a Manual Trans vehicle, not from an automatic vehicle.
If you plan on rebuilding 302 with a cam or higher compression then you will want a MAF(mass air flow) computer.
Ford used 2 types of EFI computers in the 1980's to mid-90's
Speed Density EFI, uses a MAP sensor and "looks up" air/fuel mixes from a table in memory, so it can't change mixes much if you modify stock engine.
In carb terms Speed Density EFI means main Jets are fixed can't be changed, so limited fuel flow set for stock engine
Mass air EFI, used a MAF sensor and could make changes on the fly based on air flow into the engine, so you can modify engine and get more horse power.
MAF EFI, would be the same as changing main Jets to add more fuel because of engine upgrade, but it does it automatically, up to a point