Save your money. You don't wanna go all out on a car with so many high miles. In a few years you will probably need to swap engines, no sense adding bolt ons to decrease the useable life of your engine even more. I Your also nearing the time for your next timing belt change. That will cost you a pretty penny so start saving up now if you only make 200 bucks a month. By the time you have the money together for it (after gas and insurance) you'll need a new timing belt.