I seriously doubt that guy was running a shot no less than 100 pounds... so could that occur with a really small shot??

 

You might be fine with a small shot...I am a cautious person and if I did put nitrous on my car, I would start with a 15 shot. I would like to know how the OP is doing with his setup...

Here is another funny video...

 

So shocks and sway bars did it for him!