BaggedMazda87
+1y
The only POS wire I had was the main/ECM lead.
Actually I just remembered the problem with my charging system wasn't that I used a small AWG wire, it was that I pulled power to my main/ECM off the alt, and that doesn't work.
I'm not saying in ALL situations, but MY system needed two large AWG wires-one from the batt to the alt, and one for the main power. Your distribution block should work fine; as long as you have a good sized wire from your alt to your batt. And correct, the 0 AWG wire should be able to supply plenty of current to all your leads. Although I would run a separate lead for your compressors or amps. And if you have both, a second batt or at least a capacitor wouldn't be a bad idea.
Also like Grant said, make sure you re-do your grounds. I used 4 AWG to run 1)block to frame, 2)neg batt post to frame, and 3)frame to body.