Preheat oven to 350° and lightly grease 2 loaf pans
In a large bowl beat eggs, oil, vanilla and sugar. (I did this by hand), fold in the zucchini. Beat in the flour, salt, baking powder, baking soda and the cinnamon (did one cup at a time and then added the salt, baking powder, baking soda and cinnamon to the last cup of flour). Gently fold in the blueberries and transfer the batter to your loaf pans.
Bake for about an hour and ten minutes. The time may vary depending on your oven. Just check it and if a knife inserted in the center comes out clean its done. Cool for 25 minutes on a rack and then remove from pans and finish cooling on the rack.