Yup that's what I had to do on my 85, my wiring was an "extreme" **** show as well, for starters the big "hot" off the alternator changed color and gauge 3x in the length of the/6 valve cover. Just twisted together and crudely taped, not even a crimp or wire nut (like I've seen some idiots do) one of these twisted connections was draped 1/2 " above the fuel line from pump to carb, with bare strands "escaping " the tape job..... It's a wonder this thing didn't burn to the ground.