bottle questions?
The neck will still get cold as the pressure is still proably about 50psi or so.
Why dont you get a pressure gauge? If you looked at your o2 you would have seen a pig rich readings....
Nitro dave sells the anolog style gauges, we sell digital ones, cant go wrong with either one....
Warning, don't open your valve with any type of nitrous lines hooked to it, I've seen someone almost get the **** beat out of them by a -4 line whipping around spraying nitrous everywhere.
When I do a nitrous install, I like to purge all the lines with nitrous before I make all the connections to get any possible trash out of the lines. These days I've gone to wrapping the lines in a towel & holding them in a vice to spray through them, they are dangerous.

