I picked up a whole boneless pork loin roast and i'm not sure how long to cook it. I had my butcher cut it in half so I could fit it in my roasting pan, so now I have two 5 lbs roasts. The guidelines for this are all over the map. Anywhere from 8 to 30 minutes a pound at 350 degrees. It's very confusing. I'm having a large group over on New Years and so i'd like to be able to plan when this will be done. Any insight here would be helpful.