Preheat oven to 270ºC .
Pat meat dry. In a small bowl combine rosemary, thyme, garlic, pepper and salt. Rub mixture onto meat and arrange meat on a rack in a roasting pan. Roast meat for 45 to 50 minutes, or until a meat thermometer inserted in the thickest part of the meat registers 130 to 60ºC . for medium-rare. Transfer meat to a cutting board and let rest, loosely covered, for 10 minutes. Carve into thin slices for serving.