Cut slits in pork loin roast, using a sharp knife; push garlic slices into each slit. Rub pork loin evenly with salt and pepper. Brown on all sides in hot vegetable oil in a large skillet over medium heat. Place in a large lightly greased roasting pan.
Bake at 325° for 1 hour and 45 minutes or until a meat thermometer inserted into thickest portion of pork registers 155°. Let stand 10 minutes before serving. Slice and serve with Raisin Sauce.