Through 11 games Allen has 15 passing TDs, to go with 7 rushing TDs. Not hard to figure out that if he keeps up this pace he'll finish with 32 total TDs.
I believe the franchise record is 34 by Jim Kelly in 1991 (33 passing, 1 rushing). It is the only time Kelly did it. The thing is in checking this out it is the only time any Bills QB has been at 30 or over TDs. Unless I am missing something it hasn't ever happened, before or since. Even in Ferguson, Bledsoe and I think Fitzy