I finally got my kit all set up and sprayed for the first time today. Everything went real good except one thing. I tested my retard flowed the fuel purged the nitrous and the the motor just to make sure everything was working. Then I loaded up the car on the trailer and hauled a few miles it to a test spot I use. When I went to start the car it backfired through the carb. I think so.e nitrous is leaking past. When I was testing everything last night and just using the nitrous purge,I did find that my safety valve leaked past. Does this sound right? I don't think I should be having any issues, everything is brand new.