i personally run 13 or 14 guage. for stock..I like it because it is more limber... If your wires get hot after the run there not efficient.. then go to a larger wire or smaller guage.. larger wire does not always meen more power is passed.. you can only flow so much through it..
HERE IS MY TRADER FEEDBACK ON HOBBYTALK. http://www.hobbytalk.com/bbs1/itrader.php?u=8257