Here's a shot of the page that has the can details. Gotta have a blower cam if you want to run fumes and not back fire.
This is my build dairy (log) for my 95 Lamborghini Diablo kit car. It will be running on fumes (or gasoline vapors). I am explaining the build and how to run the car on fumes within this blog. There is also a video on dailymotion.com mark cooper sisqocracker that explains how this works.