I know it sounds silly asking this question. But, with all the cleaning and cooking I have been doing I think my brain blew a fuse. According to FoodTV website a 22 lb turkey would cook in 4 hours and 24 minutes at 350. So, if I am cooking it at 325 how much longer would I need to cook it? It sounds silly but I am so use to cooking at 325 that I just cook it at this temp. Any help would be greatly appreciated.