Okay i read a lot about the big 3 upgrade and even saw the video on ED website but still I got a few questions on it. Right now there are 2 wires on the negative of the battery. One if from the Battery negative to the chassis and the other from the Battery negative to the engine block. And One wire from Battery positive to the alternator. Can I just upgrade these 3 wires and it should be fine or do I need to add another one from the engine block to the chassis?
Upgrade from the batt pos to the alt with 1/0.Upgrade from the batt neg to chassis with 1/0.Upgrade from alt case or mount or somewhere on the block to chassis with 1/0.
When you upgrade the wire from the alt case to chassis put it in the same place as the neg batt to chassis (a frame bolt works much better than someplace with only sheet metal).