I was wondering what I would need to run nitrous safely? What mods would I need done on my car? It has around 120,000 miles. I was thinking about a 100 shot.

 

Does your car run well? Any tune-up issues you have now will be 10x as bad with nitrous.

I would recommend at minimum a hobbs fuel pressure switch and a wide open throttle switch. I am not sure how reliable stock LT1 fuel pumps are but if its a stocker it may not hurt to upgrade it to be safe.

You dont necessarily need any modifications to your car, anything on the exhaust side will help A LOT since you are in essence cramming air and fuel into your engine but doing nothing to expell it any faster.