Ok, I read that if you give the snakes a bigger enclosure, they would be able to grow bigger. As far as the heat goes, I just added foil over his cage with holes for his lights. i will be adding a digi thermo and humidity meter after I get his new cage all figured out.

He likes to sit underneath the log in the middle of the enclosure, rather then his hiding rock, but I am just happy he is doing well.