I think I know what you problem may be for your slow feel. Read the following post.
http://www.camaro5.com/forums/showth...t=38964&page=6
You will see that the car needs to be reset (by taking a couple of fuses out over night). If your car has ever had 87 octane gas in it at all, the computer adjusts to fire the pistons = to that octane. But if you then start using higher octane, the computer does not adjust back. Many people in that thread I sent you tryed this fix and it worked and inproved gas milage. You will find which fuses to pull in that thread (and a picture). Write me if you have any questions.