Subscribing,
my 95 Z inspection ended in June 08..... Last Winter I converted to a Duel Cat Y-Pipe from a 97 SS and added a set of SPL headers that matched. The car needs to be inspected ( someday ) and I'm curious to see if your will pass.
You should try to leave everything on. I've had several SBC's pass the 'sniffer' test with everything removed - except for a CAT. I have never gotten a cat-less engine to pass a smog test. I've tried slipping a hollowed Cat by places a couple times and they always fail it.