anyone use one of these on thier stang? I put it on my car today and it helped get the idle under control (still speed density), and got the fuel set...it really smoothed it out well, but I haven't driven it yet. Has anyone used one of these and what results did you get i.e. dyno #'s, track #'s...any improvements? For those who dont know, the intercetpor plugs into your car's computer and allows you to adjust and monitor, fuel, timing, spark, rev limiter..**** like that