PREHEAT oven to 350° F.
SIFT flour, allspice, baking powder, baking soda and salt into medium bowl. Combine pumpkin, sugar, Juicy Juice, eggs, oil and vanilla extract in large bowl; stir well. Stir in flour mixture just until moistened. Spoon into greased 9 x 5-inch loaf pan.
BAKE for 65 to 70 minutes or until wooden pick inserted in center comes out clean. Cool in pan on wire rack for 10 minutes; remove to wire rack to cool completely.