well depending on what version of the 3.8 you have or not. the current ones known as the 3800 series II puts out 200-205hp stock. the pre series II engines put out 170 which was decent power for the cars that used them like the cutlass supreme or the regal. the supercharged versions were rated at 205 (series I engine) 230-235 (series II engine). but being GM they are notorious for listing the power below what they really put out. I had a friend who had a supercharged monte ss from 04 or 05 and he said that it was more than 230, closer to 280.
