mark r

hi evening all,im ask these questions on behalf of friend of mine who has the engine box loom etc from a mk4 rs turbo escort mfi and he wants to fit it in a mk3 fiesta.

1,whats needed to change over efi as gotta be better than mfi.
2,what ecu is needed to run efi
3,would it be better to get a new engine loom rather than botching 2 looms togeather
any anyput would be great as im ok with me cossie stuff but aint got clue about this.also he has a complete xr2 1.6 efi

cheers mark