ok this is what i have, a nitro daves 10lb bottle and a NOS 10lb bottle, the NOS bottle wont fit onto my system thats on my car. the fitting on the NOS bottle is too big. what do i do? is there some kind of fitting out there that will work with this bottle to it will adapt to my kit?

 

All you will need to buy is the appropriate bottle nut to fit the size main feed your using or change the valve to ours or vise versa.

660 4an Bottle Nut
http://www.nitrousoutlet.com/catalog...roduct_id=1965

-Chris