Quickly realised that the Wizards set up instructions were really meant for the 50bhp Nova boys. The supplied Jets made the mixture so rich that it totally swamped any Power gains. I can inject up to a 200bhp shot & no ignition retard is required anywhere under any conditions. It took the best part of a year of trials to get the system giving 100% but it was worth it. I use a Heater before Topspeed runs to raise bottle pressure to over 1000psi.
I wish you luck, but be carefull, incorrectly used Nitrous is an engine Killer.always use a Proggresive Controller or it will end in tears.