From my signature you can see what I have in my car right now, and with a mm motorsports suspension kit and a tf engine kit, what would be the best tuner for my car? and where can I buy that PMS tuner from? I know if you buy the tweecer from the website that is mainly all they sell so they are high in price. I dont really know much about tuners if someone can give me info. on how much they help foxbodies. my car was speed density right but I put in the mass air conversion so it is mass air. it has the stock computer; the replacement that came with the mass air kit. When should you change your computer and put a tuner in and how much performance do you gain from them?