One thing that I have found is that it realy is fairly small tweecs that need to be done.
Its more like a opra with a group of fine performers a small imperfection to a pro (or the real world in this case of the eec as it is the great equalizer) shows against the background of others working properly.
In yet other words it realy is about the details...fine details. That realy is the diff. from poor drivability and stock drivability.
now granted inj. size and MAF other than stock need to be taylord' to what those parts need/are...but even then close will get you running...and fine tuning will get you near/like stock drivability.
Just saying this so you dont think that you will have to make radical changes to all these points and areas of the tweecer also every combo is diff. and is slightly diff. in its tune.