The Toda B's are a great cam, don't get me wrong, but they idle rough, and also require a lot of up keep. To be honest, I would not get such an aggresive cam for street use.
With your other basic mods that go with the cams (I/H/E, clutch, ECU, VAFC, ect...) you can expect about a 20-30 WHP gain. If tuned right you should be in the mid 14's. THAT IS IF YOUR TUNED RIGHT, and setup properly. My buddy has this setup, he dynoed at high 160's to the wheels, but his best run was only a 15.001. Tuning is a HUGE part of these cams.
My buddy who has them, actually wants to sell his whole set up. If your interested, go to his page
http://filebox.vt.edu/users/echi/webpage/
The iteams are ALL still for sale, and are not sold.