Well no expert but I'll give you what I've experienced. I have a L86 sierra so basically the same motor. I installed a smaller TSP VVT2 cam 218/226 .635/.635 32% fuel lobe. It's smaller because I tow a lot and I wanted to keep the stock stall. It will need a tune because it will through a check engine light and that will cause it to not pass inspection. Watch Goat Rope Garage tuning series, He has the best GEV 5 tuning stuff on youtube.
https://www.youtube.com/channel/UCP_...JqJOiGoCRT5SCw
I just had mine inspected yesterday and our laws are similar to yours. I had no problem, as long as your not throwing a check engine light you'll be fine.