Preheat the oven to 350 degrees Fahrenheit.
Grease and flour 2 bread pans and line them both with parchment paper. Set aside.
Beat 4 eggs in a large bowl. Then add 3 cups sugar, 1 cup vegetable oil, 1 cup water, and 2 cups pumpkin. Beat again until fully combined.
In a separate bowl, combine 1 tsp baking powder, 1 ½ tsp salt, 2 tsp baking soda, 4 tsp pumpkin pie spice, ½ tsp nutmeg, 3 tsp cinnamon and 3 ½ cups all purpose flour. Whisk to combine.
Dump the dry ingredients into the wet ingredients and beat together in a large bowl. Carefully mix in up to 2 cups chocolate chips at this point if desired.
Divide the batter evenly between the two bread pans. Place both pans in the oven and bake for approximately one hour, until a toothpick inserted in the center comes out clean.
Wait 10 minutes to remove the pumpkin bread from the pan. Enjoy!