Preheat oven to 350 degrees. Grease muffin tins (2). Mix dry ingredients together. In another bowl, mix together eggs, pumpkin, and margarine. Beat until well blended. Stir in chocolate chips and nuts. Mix in dry ingredients. Spoon into greased muffin tins. Bake about 20-25 minutes. Place muffins on cooling racks after removing from oven. Put muffins in a ziplock bag and put in refrigerator. Let muffins sit one-three days before eating to allow flavors to set in well. Reheat before serving if desired. Makes one dozen muffins.