i have already installed a flowmaster exhuast system, and bought a k & n less restirctive air filter, does anyone know of more ways to give my 1988 cadi sedan de ville a little more juice?

You could swap out the fluids - oil, tranny - for synthetics (MOBIL 1, etc.) and put in upgraded spark plugs (like NGK platinums). I did those to my '88 and along with the K&N business, noticed a definite improvement.

thanks for the suggestions, i actually did all that when i first got the car--about a month ago.....any other suggestions?