Originally Posted by bbquzz
You might want to figure 1.5 - 2 hours per pound of the largest butt. So if you have 2, 9 lb. butts they would be done in 13 - 18 hours, that is if you are running at about 225°. If you are running much hotter you could figure less time.
I did 4 butts on my WSM totalling about 35 lbs in 12 hrs (give or take) @ 225 degrees. If it's a single butt, perhaps.
22.5 WSM, CB940, 26 MB Pro Kettle, Thermos Grill-2-Go, Maverick ET-7 & Taylor Digi, BBQ Guru