Two additional things to note regarding the cooking time:
When cooking these pork roasts cold, straight from the fridge, they often require about 90 minutes of cooking time. Allowing the meat to rest a while and come closer to room temperature before cooking will shorten the cooking time.
I recommend pulling the roast from the oven when it is closer to 140-142 degrees. While resting on the counter, it will typically increase by 8-10 degrees. So, be careful not to overcook and dry it out.