Question: how long to cook a 4 1/2 pound pork roast?
Answer: Preheat oven to 350°F. Mix together black pepper, garlic powder and salt. ...  Put the roast on a rack in a roasting pan. ...  Roast until internal temperature is between 145-160°F, 20-25 minutes per pound. ...  Cover roasting pan with foil and let rest for 30 minutes. Heat oven to 475°F. ...  Carve and serve immediately.