Preheat oven to 350 degrees F.
Sift dry ingredients together.
Beat eggs, sugar and oil until light in color.
Add, alternately, dry ingredients and pumpkin, mixing between each addition.
Stir in chocolate chips.
Pour into large ungreased tube pan until half full (or 9 x 13 pan).
Bake at 350 degrees F for 1 hour and 10 minutes, until dry in center.