My wife got us a big turkey for free with points at the grocery store. She figured why not get the biggest one and smoke it. I like her general line of thought here! The question comes how long does it take to do a 21 lb turkey in a mes that will max out at 275? I wanted to have some others over as my wife and the 4 month old baby aren't going to put much of a dent in a turkey that big, but I have no idea on the time. Everything I've seen is for much smaller birds. Thanks in advance.