Voltage drop issue- where to go from here

Dart-
I ran the tests you gave me. Im going to run a ground cable from my new VR to the neg post of the battery tomorrow as well, or can I tie it into the ground cable on the block?


Ground to the block will be fine

What was the results of the voltage drop tests?


The stuff on the cluster was an attempt to repair loose connector pins. They are originally simple crimped into the board. Clean them up and solder them. The jumpers are OK if done well and actually make good contact. It appears that the board may have been damaged by something shorting at some time. These old girls are poorly protected, fuse wise. The "ignition run" circuit, which also feeds power to the cluster is not fused at all, other than the fuse link.