Gregg,
How many miles are on your car? Is this a trailered show car or a daily driver? I would imagine that if it doesn't see much driving outside the track that you would be able to safely get passes through without too much wear and tear on your engine. For all practical purposes I would imagine that as a rule of thumb that injectors be replaced with an upgraded turbo setup. Especially when running 16+ psi's. What amount of pressure are you running? I am not one to judge you as my car is not that hopped up yet and don't have first hand knowledge, but just curious as to why your findings differ from almost everyone else on this board that have gone through the same mod list - maybe minus the NOS. Much props to you if you are running this car like most of us as daily driver's with 10-15k miles a year.
Nirmit