Heat oven to 325º F. Place the pork in a roasting pan and rub with salt and pepper. In a small bowl, combine the preserves with the bourbon, soy sauce, and garlic and pour over the meat. Cover and roast 30 minutes. Uncover and baste with the sauce and the juices that have collected in the roasting pan. Cover and continue cooking, basting every 20 minutes, for about 1 hour longer or until an instant-read thermometer registers 155 degrees F. Remove from oven and let rest 10 minutes to finish cooking before carving. Serve with pan drippings.