Do I need to drill a hole in the firewall for the clutch cable?
I took a quick look and couldn't see one from in the engine bay, I'll look from under the dash tonight, but if I do have to drill one, can it be done without pulling the engine (V8) out?
It looks pretty tight down there and I doubt I'm going to be able to fit a drill in there...

Also, I tried to search for the resistor mod but couldn't find anything, does anyone know how to do it?

Cheers

The hole will be there. Its near the brake booster, will have a grommet in it.

Everything is done the same as on a Falcon.

I can't help with the resistor info, try googling.

cheers mate, i found it, has a bunch of wires running through it, where does the clutch cable grab from? the firewall like on an xf?

Yep it goes through as per XF.
If you want to sort the ECU out correctly I have an EF Manual XR8 ECU that would be available for sale for the right offer.
The catchcode is 4DDF.
PM me if your interested.