Plug Wires touching

[HotRoddin]

Its not so much that they touch, its when they run parallel with each other for a long distance .... when they do, high voltage flowing through one can induce current flow in the one running along side it, if theyare close enough together for a long enough distance ... like pkrwud says if that occurs with two cylinders that fire close together you can have problems. Put a seperator on them and keep them apart. I put the # 7 wire on one side of the seperator and the # 8 on the opposite side to keep them as far apart as i can.
Some basic electronics in a nutshell ... if you run wires, especially high voltage wires side by side, close together for a long distance, current flow in one will cause current flow in the other, insulated or not.