A lot of guys go with 0 or 00. I've read that the factory used 1 gauge. I have 0 on my '38. You should be able to find heavy cables at a farm store. Make sure your connections are clean.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.