Cant believe nobody has said it yet...

That is NOT a Turbo Technics conversion.

If its got Ford Motorsport all over it its gonna be one of the kits intended for the XR3 turbo rally series from the early 80s!

T3 on it IIRC.

Gotta be worth a few quid, esp as the engine stuff looks proper good nick

The TT stuff has TT on the carb hat amongst other plaes.