Yeah it's normal IMO...
Pines and Bulls excrement in my experience is much more pungent then other species of snakes, when my Black and Northern Pines go, well I can smell it several rooms away behind several closed doors. I have also noticed if I feed them chicks/quail the smell is ten fold then when I use rodents. I have heard the only colubrids worse then the pines is the Indigo snake.
My Large male northern pine is a crapping machine, he starts crapping the day after fed and then craps daily for like a week, they have a higher metabolism then other colubrids as well.
I have taken a few $hits a man can be proud of myself, BUT the Pines have me beat hands down. 
>>I have been keeping snakes for a long long time and i finally picked up a pair of hypo bulls. I posted a few weeks ago on helping my male chill out (which he did). Well here these next question since i have never had bulls before.
>>
>>Why does there poop smell soooo bad? I have retics and pound for pound the bulls smell alot worse. I have kings and other coloubrids of the same size and bigger that are on the same diet (personally breed then f/t mice) but there poop is no where near as bad.....
>>
>>So is this normal?
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Roberts Realm Of Reptile Research
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Thanks,
Frank Roberts

I opened my mouth and out flowed a melody black.