Rite mate has a xr3i (mfi injection) mk4 escort cab! the engines now on 233k and is pretty much dead!

what we wanna know is can we use a 1.6 carb engine and just change the inlet manifold over and stuff needed?

If not, would it need a rs turbo loom to run a turbo lump, as it is mfi already?

Cheers for ne help
Pez