Jon

once again, thanks.. the wiring diagram I am looking at shows the +ve feed as a black or black yellow wire from the ignition amplifier...

The -ve wire is a green wire connected to a filter etc etc...

The green is intact with the filter, the black wire is missing and attached to the car loom...

I am presuming I can "intersect" the black/yellow wire from the ignition module and that will be a positive feed to the ignition coil, but I am gonna have to check once its all wired together..

Sorely tempted to get a whole new engine loom tbh, just to keep it back to standard...