Grandma Loa's Zucchini Bread

1 cup oil
2 cups sugar
3 eggs
3 tsp vanilla
2 cups shredded zucchini
1 oz square unsweetened chocolate, melted & cooled
3 cups flour
1 tsp baking soda
1 tsp salt
3 tsp cinnamon
1/4 tsp baking powder
1/2 cup chocolate chips + 1 Tbsp flour

Preheat oven to 350 degrees. Grease and flour 2 8x4, or 4 small bread pans. Mix oil, sugar and eggs together well.  Add zucchini, vanilla and melted chocolate.  Sift together dry ingredients, add to wet ingredients and mix until just combined. Toss chocolate chips with 1 Tbsp flour, then mix into batter. Pour evenly into pans & bake for 1 hour for large pans or 30 minutes for small pans.  Cool 15 minutes in pans, then turn onto cooling rack to cool completely.