Actually I'm running 75.
Couldn't feel the 55 shot at all, just heard the spray and watched the RPM's rise.
I was hoping for a bit more of a kick.
When I am going to run nitrous, I open up the bottle manually and it should fill & pressurize the line from the bottle to the NMU.
So when the solenoid clicks on, it should spray right away.
So I wouldn't think there would be any noticeable lag.
Maybe my nozzle is too far back (12 inches from TB)?

What plugs (make and model) are people running with their nitrous?


1997 GL Sport MTX,
Soon to be the fastest proven Zetec around.