Just done it on mine is a really easy conversion. If you have got the fiesta turbo loom, you will find one plug that would have gone to the originals cars main loom. There should be 7 wires on it. Get a wiring diagram and trace where these wires go ie: live, switch live earth fuel relay etc You will need to make a mini harness for the ecu and fuel pump relay but doing it this way saves removing all the original loom. You will also need a frst flywheel or 1.8cvh bottom pulley setup to run the dizzy less spark.