So, got the motor back in with the box and an, ahem, experimental flywheel and been stitching it back together.
Busting my arse trying to fit the exhaust manifolds, pick for Fred
I've realised the car doesn't have any O2 sensors anywhere. The donor was optioned with no cats and no post cat sensor but there are also no straight up O2s either and no provision for them. No wiring, bungs anything.
Anyone ever come across this before?