One of my first mods was to put a shift kit in the tranny on a completely stock motor ,needless to say I have been hooked ever since!! When u are young and do not know, it feels like u just put Warren Johnsons motor in ur ride, a few extra rrrrs and the kick when it shifts ohhhh yeah! unfortunatly the truth be told alll the over revin slowed the car way down, but it felt and sounded like there was a major difference!lol