Fall River Clam Chowder ~ course one of our Feast of the Seven Fishes. 4 pounds littleneck clams 1 cup white wine Salt, to taste 3/4 pound bacon, chopped 1 large onion, finely chopped 2 leeks (white and light green part only, well washed), sliced into half moons 1 cup chopped celery White pepper, to taste 6 tablespoons all purpose flour 4 cups clam juice, or as needed 1 cup heavy cream 4 bay leaves 4 cups peeled, diced, and blanched Idaho potatoes 1/4 cup finely chopped fresh parsley leaves Oyst