Installed msd ignition box and dizzy. Now wires under dash try to get hot

Dan s said

Ok. Made a little progress. I bypassed the factory gauge by connecting the two wire straight together and running a charge wire from alternator to the big post on the starter relay. Start car. Still over charging. When reved up it jumps to about 19. Going to pick up voltage regulator tomar morning.

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First try removing the voltage regulator and making sure it has a nice shiny metal to shiny metal contact to the body. Resistance on the ‘ground side’ of the circuit can cause just as much trouble as resistance on the positive side. Next wait for some of the electrical experts to respond. There are ways to measure the resistance in the voltage regulator circuit with the volt ohm meter you already have.