Ep1dem1c

Ok i did some searching around... I am changing my pos and neg wires from my battery. I already changed the wire to my fuse box (since I did a tuck) if i remember right it was 8 gauge.

Next I will be doing the ground i think it is 4 Gauge?
Also I will be replacing the wire from my starter to my battery which is 4 gauge i believe... correct me if im wrong. I pretty much just need to know if this info is correct. Also the ground and positive should be copper?

thanks