What kind of induction do you have. Carb, TPI, TBI?? This is must have info. Other than engine mods and computer chips, you can figure out a way to bring more air into your intake, that'll always help. A flowmaster 80series muffler will help, and sound great too. Oh..and what exactly is cheap to you?? I don't want to give you cheap for me that might not be for you. And as for specs..I don't know if it has top spead or 0-60 times, but
http://www.camarosource.ca is a basic camaro encyclopedia.