peel shrimp, leaving tail section on. Make a deep cut along the top of each shrimp (do not cut all the way through; remove the vein. Place the shrimp in a shallow dish; add salad dressing. Set aside for 20min. Meanwhile,in a bowl, combine the bread crumbs, clams, butter, & parsley. Drain and discard salad dressing. Arrange shrimp in a greased 13x9x2in baking dish. Open shrimp and press flat; fill each with 1 tablspoon of crumb mixture. Bake, uncovered, at 350°F for 20-25min or until shrimp turns pink.