Seems about right to me. An A6 Camaro typically always makes around 30 less RWHP than a manual. The auto car had about the same amount of miles as this one when first baselined. After a hard break-in, the manual car picked up 16 RWHP. This is also typical, as our G8 GXP picked up 20 RWHP between new (less than 50 miles) and 1,500 miles with no changes.
Not trying to be smart but the A6 Camaro is an L99 rated 26 less HP than the LS3 M6 Camaro. The 40 rwhp difference seems like alot. The manual vs. auto 3v difference is not usually that wide spread is it?