How many minutes in the oven per pound: stuffed turkey
Per Food Network, plan on 20 minutes per pound at 350F (177C), up to 30 minutes more for a stuffed turkey. Whatever you do, don't count on that silly pop-up thermometer thing, use a real thermometer. The thickest part of the thigh and the stuffing should register 165F (74C). Don't forget to let it rest for at least 30 minutes.

For what it's worth, stuffing a turkey is criminal. Check out what Serious Eats has to say.