In a small bowl, whisk together olive oil, minced garlic, salt, thyme, basil, rosemary, and black pepper. Massage the seasoned olive oil onto the pork loin, covering all sides of the meat and fat.
Roast the pork for 30 minutes, and then reduce the heat to 425F. Roast for an additional hour. Test for doneness with a meat thermometer; the internal temperature should be 155F.
Allow the pork loin to rest for 20 minutes before carving. It will continue to cook while it rests.
Notes
Keep an eye on the internal temperature of the pork loin, checking it early in the cooking process. Remove it from the oven when it reaches 155°F for optimal juiciness.
After cooking, let the pork loin rest for at least 20 minutes before slicing. This resting period allows the juices to redistribute throughout the meat, resulting in a tender and flavorful pork loin.