Here is a system I found on Ebay through another forum. I wanted to make sure it was available to gassavers.org.
http://cgi.ebay.com/Propane-Gas-Saver....Item
The price is a tad high but maybe someone on here can figure a way to do it cheap. :-) This is the same guy who produces the Hydro-Gen hydrogen generator.

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Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.

2007 Prius,
http://www.gassavers.org/gaslog/sig.php?id=2 http://www.gassavers.org/gaslog/sig.php?id=13 http://www.gassavers.org/gaslog/sig.php?id=124
http://www.cleanmpg.com/garage/images/his423.png
http://www.gassavers.org/gaslog/sig.php?id=447
Team Slow Burn

That's nuts, I wonder how all these things can be hooked up at once and if they'll fight with each other. Like ozone generator and water injection, it's a lot of holes drilled in the throttle body, luckily I'm getting one for free so I can experiment and tune all this crap soon, I wonder what kind of afrs I'd see running propane...

Isn't the hydro-gen system crap???

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http://www.gassavers.org/gaslog/sig.php?id=6
http://www.gassavers.org/gaslog/sig.php?id=115

Is it? Is that the one on ebay for 100 bucks that has the custom mold?

I'm not totally sure his hydro-gen is crap. I've been hearing that the baking soda I was using may not be good for stainless steel.

__________________
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.

2007 Prius,
http://www.gassavers.org/gaslog/sig.php?id=2 http://www.gassavers.org/gaslog/sig.php?id=13 http://www.gassavers.org/gaslog/sig.php?id=124
http://www.cleanmpg.com/garage/images/his423.png
http://www.gassavers.org/gaslog/sig.php?id=447
Team Slow Burn