nitrous questions .

Will the carb open ok, if set directly on the Nitrous plate? If so, I would be inclined to do that, and ditch the other spacer. The only other tip I could add, would be to solder all your wire connections, as opposed to using the crimp style connectors everything seems to come with. Some will argue it, but soldering (if done correctly) will be the best for longevity and reliability.