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Message: <blockquote data-quote="DisturbedRacing" data-source="post: 28958" data-attributes="member: 8483">IMO Since you've never messed with spray before, I'd get the most complete kit I could. You'll need a bottle heater and a gauge, NX makes a nice heater that you don't have to baby sit. It keeps the temp and pressure on the up and up automaticly. I also run a RPM window switch. Mine is set to bring the spray in at 3000rpm and cut it off at 7500rpm. If you have a rev limiter set at say 6500 you'll need to set it to shut off at around 6300-6400rpm, so the nitrous and fuel is not spraying when the limiter cuts in. I use the window switch along with a micro switch on my carb secondaries and the main arming switch. I'd also get a fuel pressure gauge. You may also want to look into a fuel pressure safety switch, it will disarm the system if the fuel pressure drops below a set point. I think most of the newer kits for fuel injected cars may come with a fuel pressure switch, I'm not too sure though. I mostly mess with carbed set ups so maybe someone else will chime in. I'd get a spare bottle too, nothing ends a night of playing around like running empty. lol Thats about all I can think of off the top of my head. If something else comes across my mind I'll post up. I'm no expert by no means, but that is what I have on my set up even though its carbed. Also, I suggest going to <a href="http://www.hardcore50.com" target="_blank">www.hardcore50.com</a>. Their forum is full of awesome nitrous tech.</blockquote>