trim fat from meat. In a bowl combine salt, pepper celery seed, onion, garlic, cloves and red pepper. Rub mixture evenly over the meat.
On the grill, place meat in a shallow pan with water on the bottom. alternate beween pan and the rack of the grill. Dribble with it's own juices.
For the sauce, in a large suacepan combine tomato sauce, catsup, onion, green pepper, vinegar, brown suger, worchestershire sauce, musterd, chili powder and garlic.
Bring to a boil, reduce heat. Simmer, covered for 15 minutes.
Spoon sauce as desired onto pork servings.