Smog and Fuel Economy

[GasSavers_Scott]

Now until I discovered Gassavers, I thought fuel injection was the best that you can get. Then I learned about lean burn and low emissions. Coming from California, I grew up with the California versions of cars getting worse mileage and lower performance. That's when I discovered HF,VX, and HX technologies using learn burn that I thought was not possible. It was quite a discovery, now as I prepare to get my next car built for economy I have a few questions about burn ratios and the emissions generated.

Now this may seem odd, but logically if a car were to burn more fuel, like in Cailfornia, it seems it would pollute more. Now I find that when you lean out a car it pollutes more. From what I understand the NOX goes through the roof, but over that lean burn, pushed beyond lean is the area that does not pollute.

So I figure in California they want the engines to run rich to keep the catalytic converters running all the time? Why are the HF,VX, and HX not allowed to run in the lean mode there, is it the transition between normal 13 to 1 and the cross over to 16+ to 1 where the California smog laws don't want the car producing excess NOX while transitioning?

Now in all the experiments, like using an EFIE, or HHO to tell the O2 sensor to lean out, where is the balance? Is there good smog bad smog? I understand that CO production is a constant and that the NOX is what there after to reduce.

So in this long roller coaster question, what am I doing when I'm running lean? Is there a perfect ratio where I'm getting great f/e and low emissions? The tricks like IAT tweaking, XFI cam, and all the other things to make a car get better mpg, are they polluting? I always thought that if you had a car going down the road like my old VW getting 24 mpg stock, modify it and get 34 mpg, that the distance that gas is being burned produces less polution for each given mile. If someone can set me straight on ratios, when NOX is produced, and how lean is lean, I would greatly appreciate it.