So here is the question that has been stuck in my head for a while and I am sure most of you that have been consumed by these HHO things for the past 6 months like me... So I built a Smacks unit and it seems to work pretty good, good production, no leaks, reliable and it only pulls about 7 amps without a PWM. So why cant you run like three or four of these things to produce 4 times as much gas? From there you could lean out your vehicle and hopefully get huge gas mileage increases, right? And if this is the case, then why cant you get a car like a Geo Metro and run a second alternator that charges a completely seperate system backed up by about 4 car batteries for reserve power and run like 10 units? I know you can buy a propane carb that can easily be converted to just about any application. Isnt that the next step once we all figure out how to build a reliable efficient unit in our garages? Let me know your thoughts...