Starting point for 4 link,

Anyone have any advise on hooking up a heavy (4200 lb.) nose heavy high center of gravity truck with a 4 link? Man after writing that seems like I would just start on a different project haha. Anyway its a 78 bronco 4 linked in the rear and the best 60' is a 1.74 on a dirt based track, normaly run in the sand which is even harder to hook up. My bottom bar is pretty much level with the ground and I'm wondering if it should be slightly pointing down? Let me know what you guys think. Thanks, Pat...