NOS--should I??

I understand you wanting to keep up with the newer Vettes and I know they are fast. But I think most road course drivers/instructors would encourage you to learn to drive what you have faster out of the corners rather than adding horsepower.

Pretty sure NOS is not something they like to see on a road course car regardless if it's racing or open track day.

All that being said, can't say that I have never thought about it myself.