I can help some, I have all bcis Ive never owned a bcc, but I can give ya some info
BCC can grow into monsters Ive heard them reaching 9-10 ft they do so at slow rate they'll reach full compassity around 5-6 yrs old. I know bcc breeders wont breed them until 6 or 7 because of this. My biggest boa at 5 yrs 8 feet and 25 ibs, to give you a rough Idea. females do tend to get bigger then males , although males get fed a "breeder" diet which is usually less then a female. giving a pet diet they can easily match a females size. If your boa reaches any where close to that size in the first or second yr you are over feeding.
In the wild boas are usually around 10 yrs old before they reach adult size weight, breeding because they really don't eat that often at home we feed weekly on a schedule, so we are super growing them. Try to keep that in mind as she grows up, nice and slow is best
a healthy boa is a garbage disposal even after a big fat rat they will be looking for another one. The great thing about having boas imo but this can be where people get into trouble. Most reptiles are opportunistic eaters, instinctively they don't know when there next meal is going to come, so if they find a whole litter of rats in front of them they will gooble the whole litter because it could be another 6 months before they can find another meal.
I often hear, well I keep handing my boa rats as long as she's still at the door asking for more lol bad, bad don't do this please
its just instinct not hunger she eats every week like a clock she is not hungey, just very aggressive about dinner time
just survival instincts. If your boa isn't slamming into her food, shes not a happy boa and Ive got a slew of tips for that as well.(watch your fingers..they do miss sometimes lol)
bccs are more delicate to keep then bcis so your temps, humidity need to be on point. I'm not a fan of glass tanks, but it can be done with some tweeking. Lights aren't needed unless your using it for added heat in the tank.