it would be best to run a digital air/fuel gauge if you were to do that so that you can keep a good eye on it, only thing I could see a problem is the Map sensor would have to be changed out for a 2 bar one or if your going crazy a 3 bar one, the factory one is 1 bar and is one of the reasons it doesn't take to major upgrades, having a fuel regulator that can handle boost is another way to ensure you don't lean out under boost.
as far as boosting goes I haven't done it with TBI and I didn't have immediate plans on trying it, the kit would be more for the N/A crowd at the moment and mild builds
