WTF did I do

I swaped in a 3.55 in place of a 2.73 It revs up higher on the freeway and melts the tires with ease..but somthing went wrong and i started over charging, enough to burn a wire. It was a red wire from my head lt switch to the ign. switch, i replaced it, end to end. so now the parking lights stay on all of the time, I can disconnect the head light plug, still stay on, the ign plug, still on, the turn sig. plug, still on, if i unplug everything except the battery they still stay on. Help me please someone. I'm ripping my hair out, and I ain't got a lot of hair to begin with
ranman 1970 dart
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