FIXED ! got her running again. All thanks to a new ignition set up.
Original, maybe original 40 year old coil.
And the distributor with breaker points.
Well now, same looking, well nearly some new HT leads as well.
New coils, same 3 Ohm, just new as they do fail and I suspected the old one.
Some bits missing inside the distributor. Points removed and a new mounting on the advance plate.
A magnetic "hall effect" pick up to replace the breaker points.
Fitted with a new rotor arm.
So new; coil; "points", leads, rotor arm, distrubutor cover and sorted.
Just fine tuned the timing and the carbs and sorted.
Next . . . . . . . Not sure, but I know I'm going to go for a drive !