Originally Posted by nthole
On AVERAGE, about 70 minutes a pound. But every piece of meat is different. The best bet is just put it on first thing in the morning. It'll probably be done in 7 - 8 hours. Pull and foil it, wrap in a beach towel (in a pan first to catch the juices) and put in a cooler. Hours later it will STILL be too hot to handle. Pull out, unwrap and slice.
Yep, that is about as good advise as you will get. Most bbq isn't an exact time and/or temp like a lot of recipes. This will certainly get close. Don't worry about being in the cooler for several hours as it will be fine if it is two hours or even four or five hours. Good luck and let us know how it works out.