Yeh coupe engine loom. It did have a melted power wire from IGN switch to fuse box. But i completely replaced it, no other wires appeared to be damaged.

I just went out and had a play. Bugger all resistance everywhere. 0.5ohms ign switch to fuse box, 0.5 thru the switch. 0.5 thru the fuse box(aftermarket and new), but i think it was 2.5 from coil to switch... But that still seems acceptable to me???

But i did find something when i was studying the wiring diagram. the BW wire from the coil + / IGN also goes to the regulator... Now i have a feeling my reg is ####ed. I never had a good altinator on it, but when i did the charge rate just went thru the roof and never died off. So it wasnt regulating. I left it unplugged. Now I had to semi re-wire it to suit the late altinator position and late altinator. But it should be all good. So would a dead reg be sucking power or shorting something? The reg looks anchent too so i might get a newin tomorro anyway.