hi there mate i got mk 5 escort that i have put the fiesta rs turbo engine in the efi one i have got the mtx75 box out of 130bhp xr3i zetec. i got that all on the engine but it seems to over fuleing and i dont know if this is down to the crank sensor as you have to use the zetec fly wheel and the bolt holes for the fly wheel are bigger than the cvh ones so you got a little more movement so you have to set it up with were you old one sits.