Grease and flour two 8 x 4 inch pans. Preheat oven to 325 degrees F (165 degrees C).
Stir together dry ingredients in a bowl. Beat eggs, oil, vanilla, and sugar together in a large bowl. Add dry ingredients to the creamed mixture, and beat well. Stir in zucchini and cinnamon until well combined.
Pour batter into prepared pans. Bake for 40 to 60 minutes (I think mine took even longer than the 60 min), or until tester inserted in the center comes out clean. Cool in pan on rack for 20 minutes. Remove bread from pan, and completely cool.