1. Prepare Filling: Bring sweet potatoes, salt, and water to cover to a boil in a large Dutch oven over high heat; cook 35 minutes or until tender. Drain. Peel potatoes, and mash with a potato masher in a large bowl. Let cool slightly. Whisk together sugar, vanilla, bourbon, and eggs in a medium bowl. Stir sugar mixture into sweet potatoes. Stir in flour.
2. Prepare Crust: Preheat oven to 350°. Stir together graham cracker crumbs, sugar, and melted butter; press mixture on bottom and up sides of a 9-inch springform pan. Bake at 350° for 10 minutes. Pour sweet potato mixture into prepared crust. Bake at 350° for 55 to 60 minutes or until center is set.
3. Prepare Topping: Remove pie from oven, and sprinkle top of hot pie with brown sugar; arrange pecan halves decoratively around edge of pie. Stir together honey and bourbon in a small bowl; drizzle over top of pie. Cool in pan on a wire rack 2 hours. Gently run a sharp knife around edge of pie to loosen; remove sides of pan. Place pie on a serving platter; cover and chill 24 hours. Serve chilled.