OMG...silly me... I actually got my mitts on a B-17G...not the B-17F.
I better pay more attention or I might be silly enough to stick the wrong decals on the wrong model or something.
The B-29 review of the kit I got actually noted the ability to "easily" arm the B-29 with a fatman, little Boy or conventional load. I guess this also semi-implies the Enola Gay, Bocks Car or other decals are provided. As a side note...as noted in a review the Bocks Car decals are a "post Nagasaki" decal set and thus should be built with "fatman" absent. The decal depicts a "Saltlake Cit...Nagasaki" type artwork and as Nagasaki was a secondary target and the whole mission was top secret there is no way the artwork would have been done before the drop.