The TwEECer tuner
 

I was wondering if anyone uses or has heard of the tweecer tuner. My friend just bought one and we're trying to tune his 93 GT. Any advice?

Go to Tweecer.com and they list forums that supports tweecer tuning. Loads of info. I just got my tweecer and been doing lots of reading of the EEC tuning. I suggest you do some reading before messing with anything outside of the basic stuff (i.e. timing, fan etc.) because you can do so much damage. Check it out. Peace