Buy a few of these FM traps (they are cheap, might as well get a few as you might reconfig your antenna setup and need an extra one), you need them as your local FM stations are flame-throwers.
http://www.mcmelectronics.com/produc...-FM-88-/33-341
Aim your Ant751 antenna directly at WHNS for starters, and the rest are likely to still work fine. Once we know the results of how that works out, we can go from there.