Yeah, something isn't right with these claimed baseline numbers.. No way they are going from 305hp at the crank down to 220rwhp... That is way too drastic..
Find 3v with an AUTO's baseline numbers then compare. Not the average baseline of most manuals. Plus I wonder if there is more drivetrain loss associated with a 5spd auto vs a 6spd auto. If it does that could contribute to stuff working against the V6.