Buy these:
The ultimate. And pay close attention to the feeding advice.
https://www.amazon.com/Complete-Boa-.../dp/0978897927
Another good resource. I like the advice about caging. Naturalistic caging with climbing options will enhance your experience. If not overfed, fat and lazy, they will become active and climb at night.
https://www.amazon.com/Constrictor-M...V7SFAS2414KRM3
Last but certainly not least.
Have fun.