I recently installed a new wiring harness on my 1951 chevy. 235 switched to 12 volts and swaped generator for alternator. once all wires were hooked up i tested to see if there was a drain on the negative side and there was. i started to trace were it might be coming from and it seems to be that when i disconnect the wire on the alternator that goes from #2 terminal to the "bat" terminal the negative drain goes away. need help on how to fix. thanks.