When you turn the bottle heater on, what kind of psi do you get on your n2o gauge? I had mine on for about 40 minutes in a 68 weather temp. and it was close to 1200psi. I have an autometer electric gauge.
It seems to me kind of high.

 

YOu might want to search in the N2O Tech section... Prob find your answer there.

 

Make sure the little thermostat is working, 1200 is pretty high, you want around 900-950. Get a purge and bleed off the pressure! Otherwise your shot might be fairly lean, not a good idea.

 

You should be very careful with bottle pressure above 1000 psi. I've used 1000 psi on day's with perfect air, but the plugs are just toooooo white after those passes! As previously posted, shoot for 900-950, and try to warm the bottle over time, so the pressure doesn't drop so quickly once the solenoid opens. I hope this helps.

Doug