The chip will run the correct boost for the setup, you cannot simply just up the boost otherwise you will end up with a meltdown! A 195 chip should run around 16PSI anyway, if you still have the standard T2 then this is about the limit for it. You are correct if you run to much boost for the turbo it will shorten the life of it, beige injectors (701's) are the correct injectors for this spec.

Martin