Today I bought a Xr3i with a Rs turbo MFI system in it. Going back to a ford after years of Imprezas now. Im going to look at changing it from MFI to EFI. Is it possible to use a 1.8 zetec engine with a de-compression plate, keeping the zetec head on it, an adaptor plate for the inlet and exhaust manifolds. Use a T3 turbo, Fiesta EFI inlet manifold and ecu on the Xr3i wiring loom if i put one back in as the rs one right now doesnt look too professional lol.

If this was to work would I still be able to use the power pump off it?