Now all you have to do is figure out how to make colors...lol. I can't believe I'm gettin in on this, but it will work best when you back off the throttle, however, with a modern fuel injected car, it may not work at all...with an old car , you know, carbureators ( for you yunguns thats what we had in the old days), you would turn the choke on ( remember manual chokes?), anyway, richen the mixture and turn it on..
Its funny , but I was at an import show this summer, and a guy had a old lowered caddy and could shoot about a 6 foot flame, and several of the younger crowd ( I had a 13 and a 17 year old with me) thought it was the coolest thing in the world, its been around for a few years, anyway, have fun with it, just don't shock yourself...let us know how it works!