Rub pork with liquid smoke and salt all over. Enclose in aluminum foil and bake at 275 degrees for approximately 4-5 hours. Do not open foil to peek. Remove from oven. Open foil and shred with two forks. Can remove fat if desired. Can use next day for Kalua pork and cabbage. Place foil package in glass baking dish if neatness is an issue. If you can get ti leaves, you can wrap pork in leaves then foil. Although not necessary.