Think a lot of points could be scored, but over 46 is a bit too high for me. Personally, I see it ending in the mid 40s, so not enough value there for me.
Pitt;s secondary is very questionable, and that's not good going against Chad Johnson. Still not sure if Dillon will play, but doubt the Bengals will have a huge day on the ground regardless. Cinci defense has been doing well against the pass, but not sure how long that will hold up especially against the taleneted Pit WRs, and Bengals turnovers could lead to some quick scores for Pit. Bengals can win if they can put up 21-28 points IMO.
good luck