Does anyone have a pic of the original mounting points of the ground points?
I have three ground wires, one goes from battery to the back of the breather box (main), one goes to the starter relay mounting bolt, and one goes to the ECU attaching bolt to the frame.
Is this what you are having too?
Look at the Garry 55 thread 899TNT it covers all the wires and where they go .
Basically 4 small back earth cables to either battery (3 in shroud) or,one and the main return earth to the battery from starter motor ground under the starter relay bracket.
Red + to alternator and starter relay , starter relay provides 2 positive feed to fuse bank , plus one extra (single 2.5 wire ) constant feed to fuses 1 and 6 .
Only thing you can do is beef up the cables to provide more amps, main cables warm when cranked repeatedly.