I know about the load, for the O2 sensor Im leaving that wire the original length, which worked out anyways as it doesn't need to shortened at all. The other wires werent shortened all that much to were I would think it wouldn't make a difference. No more than a foot was taken out of most of the sensor wires.
For the most part, my truck is going to be a much like a new vehicle as far as electronics and extras with power windows, door poppers, power seats, alternator conversion, a nice stereo, up to date lighting, 12 volt conversion, etc.
