There are quite a few mods that can be done and the most important mod for spanking the local 4.6 or 5.slow mustang is a 4E-FTE swap. They're not bad cars at all....if taken care of. Some parts off of certain model tercels will fit and vice-versa so your not limited by vehicle model if some replacement parts are needed. There is a wealth of info about these cars on paseopimp and tercelonline.com, hope this helps.