Begin by preheating your oven to 350°F (175°C). This ensures your oven is at the perfect temperature when you're ready to bake the loaf.
In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, salt, cinnamon powder, ground cloves, and nutmeg. Set this mixture aside. This will ensure the spices and leavening agents are well-distributed throughout your loaf.
In a large mixing bowl, whisk together the vegetable oil, eggs, granulated sugar, vanilla extract, and pumpkin puree until smooth. Stir in 1 cup of chocolate chips. Gradually add the dry ingredient mixture from Step 2, mixing just until combined. Use a spatula to scrape the bottom and sides of the bowl, making sure the batter is well blended. I like to reserve a few chocolate chips from the cup for added texture on the inside, but that's just personal preference.
Spray the sides and bottom of an 8" x 4" x 3" loaf pan generously with oil spray. Pour the pumpkin chocolate chip batter from Step 3 into the prepared pan and spread it evenly. Sprinkle 1/4 cup of chocolate chips evenly across the top for a beautiful finish.
Place the loaf pan in the preheated oven and bake at 350°F (175°C) for 50-60 minutes. Insert a toothpick into the center; if it comes out clean (except for a little melted chocolate), the loaf is done. I like to let the loaf cool in the pan for 10-15 minutes before transferring to a cooling rack—this helps it firm up for perfect slices.