Malted wheat and torrified wheat are not interchangeable. Torrified wheat is basically puffed wheat with little to no flavor character. Its best function is to help to attack starches and proteins more completely primarily in beers with a lot of un-malted base grain, like unmalted wheat. Both malted wheat and torrified wheat will help you with head retention. But otherwise it's like substituting crystal 20 for carapils... it just doesn't work.
The above recipe is 45% wheat. If you're cutting 2 lbs. of torrified (18%), then make up for that loss with 12% more wheat malt, and 6% carapils for a body filler.