Well, I'm back after so long a time. I've been reading and hopefully, learning.
To supplement a modern auto with HHO you have to use electronics to alter the signal from the oxygne sensor. When you introduce the HHO, the exhaust apparently runs a little hotter, and the computer puts in more fuel to compensate, and you wind up back where you started.

I have built an electrode out of 304 stainless plates, giving a total of 125 square inches of .040 gap.
My problem now is that the electrode draws about 80A and will boil tap water in 3 seconds. I need to boost the voltage and reduce the amps to 10A or less.

I need someone good at electronics to advise me here. I know I will have to have a pulse generator, but not sure if a FET will deliver 10A to my electrode, or whether the electrode will blow the FET.
I've considered a flyback converter, but may not know what I'm doing with that.
Maybe I could use a step-up DC/DC transformer to feed the FET independently of the pulse generator?

Anybody??