Preheat the oven to 350°F (175°C) and grease or line a 9x5-inch loaf pan with parchment paper.
In a bowl, whisk together flour, baking soda, salt, cinnamon, nutmeg, and cloves.
In a large bowl, whisk sugar, vegetable oil, eggs, and vanilla extract until smooth.
Stir the pumpkin puree into the wet ingredients until well combined.
Gradually add the dry ingredients to the wet mixture and mix until just combined; do not overmix.
Fold in the chocolate chunks or chips evenly throughout the batter.
Pour the batter into the prepared loaf pan and bake for 45 to 50 minutes until a toothpick inserted in the center comes out clean.
Allow the bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.