Snakes do not have to eat every week. As a matter of fact I believe it to be better for them to eat every other week at the earliest. Some of my male breeders eat once every month and sometimes less, but sometimes more. Do you honestly think that a boa in the wild eats on a weekly "schedule". Doubt it. Boa Constrictors are primarily ambush predators, this means that they may sit and wait under a log for long periods of time before prey will come close enough to eat. Please put your snake, the 8 footer in a larger cage, turn the temps down and do some research. I love the fact that you came here asking questions, however if you are as all knowing as you have been trying to sound then why ask questions of us. You are not going to take our advice, so dont litter our forum with attitude and know-it-all statements. Thank you, good luck, and I hope I did not offend you, just my .02 cents.
Bob