Preheat the oven to 350 degrees F. Spray an 8" x 4" loaf pan with cooking spray
Place the flour, pumpkin pie spice, salt, and baking soda in a large bowl; whisk to combine.
Add the sugar, pumpkin puree, vegetable oil, eggs, and vanilla extract to the flour mixture. Stir until just combined.
Toss 1 cup of chocolate chips with 1/2 tablespoon flour. Stir the chocolate chips into the batter.
Pour the batter into the prepared pan. Sprinkle the remaining 1/4 cup chocolate chips over the top of the loaf.
Bake for 55-65 minutes or until a toothpick inserted into the center of the loaf comes out clean. Cool for 10 minutes, then run a thin knife along the sides of the pan to loosen the bread.
Let the bread cool in the pan, then invert, slice and serve.