You might be pleasantly surprised when you dyno it....

When I swapped my 95 from manual to auto a few years ago when it was just a h/c/i low boost supercharged 5.0 - it went from 342rwhp to 331rwhp (dyno runs within a week of each other with everything else the same - including same gas).....I was pleasantly surprised because I thought the drop would be more than that....I was about .3 quicker at the track with the auto at the time....