Positive/ Negative lead what gauge?

[spareparts]

http://www.ftkltd.com/Boat%20Wiring%...or%20Codes.htm

http://www.perfprotech.com/store/art...uirements.aspx

I'd run #4

[phatdaddy]

gw, i went to buy a battery for an old mako i used to have and i told the guy i wanted one twice the reccomended cranking amps, he said "This is the one you need, if the starter hangs up, it will flip the boat."