Hello mate,

Most of this covered in the sticky at the top. Is it just an EFi block or is it a factory EFi car?

As said, if you're running EFi now, there's no point going backwards to MFi.

If I were you I'd look for a Fiesta Turbo CVH, throw it in, check the wiring pinouts as per the sticky and fit your choice of management (OFAB/OFAC/OFAM are popular).

There are a few additions you'll need: Air charge temp sensor as an example.

All EFi 1.6 CVH heads are interchangeable, all same valvetrain.

With regards to the gearbox, you can use a non LSD box, I do. The issue is more f the drivability, I find it torque steers a lot without the LSD.

Lee