Preheat oven to 325 degrees Fahrenheit. Grease and flour two 8x4 inch loaf pans.
Whisk flour, salt, baking soda, baking powder, cloves, cinnamon, and nutmeg together in a medium bowl. Set aside.
Beat softened butter and sugar together on medium speed until just blended.
Add eggs one at a time, beating well after each. Continue beating until light, pale, and fluffy, a few minutes.
Beat in pumpkin puree. Batter may look curdled — this is normal.
Add flour mixture and mix on low just until combined. Do not overmix.
Divide batter evenly between the two pans. Smooth the tops.
Bake 65 to 75 minutes until a toothpick inserted in the center comes out clean.
Cool in pans 10 minutes, then turn out onto a wire rack to cool completely before slicing.