regulator help/amp gauge bypass

I nutted my amp meter black and red together on one leg of the amp meter...I put a huge 120 amp Nippon Denso unit in my car..I used the heavy black..old alternator wire to feed the fusebox and also used the fusable link from the battery to feed the fusebox also...I ran a 6 awg big red wire from the alternator to the battery...now two lines feed the fusebox through bulkhead connetor..a simple dc volt meter installed in place of the amp meter...M2C and to each his own...:toothy2: