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  1. Voltage Regulator Question

    Electrical Systems
    I drive a 1980 Chevy El Camino Conquista. I was driving down the road and blew out my headlights at the same time (both my high and low.) I had my altornator tested and it was putting out 18 volts. Now my question is: is there a voltage regulator i need to place, or do i need to replace the...