Going to bathroom after eating

Question
I have a 6 1/2 Red Tail Boa , I have had it for about a month 1/2 great snake. It went to the bathroom after I fed it the first time it has not gone in 3 weeks and 3 rats later but is eating with no problem, I don't know if I should keep feeding it or wait till she goes to the bathroom. Today is the feeding day, the temperature may not be hot enough in the tank I have a heat lamp and a heating pad should I make the cage warmer average temperature around 80 degrees.

Thanks

Answer
My 2.5 foot ball python only goes to the bathroom every 2 weeks or so. Larger snakes will take even longer.

I would make it so it has a basking spot upwards of 85-90 degrees to make sure digestion is going as it should. This is easily accomplished by putting a platform or a large branch closer to the heat lamp.

Other than that, I wouldn't worry about it much.