Place caramels and evaporated milk in a heavy saucepan Heat over medium-low heat stirring continually until smooth about 5 minutes Stir in 12 cup chopped pecans pour into pie crust Combine cream cheese sour cream and milk in a blender process until smooth Add pudding mix process about 30 seconds longer Pour pudding mixture over caramel layer covering evenly chill loosely covered until set about 15 minutes Drizzle fudge topping over pudding layer in a decorative pattern Sprinkle top of cake with remaining pecans Chill loosely covered until serving time
