Preheat oven to 3500F and put rack in center of oven. Whisk eggs and yolks in large bowl until frothy. Add corn syrup, both sugars, butter, molasses and vanilla and mix well.

Sprinkle chocolate and pecans over pie crust. Pour filling over.

Bake pie until top is dry and firm to touch but center is still soft, about 1 hour 10 minutes. Cool completely on rack.