My first HHO

Ok
HHO family,

I’m trying my first build.
And I would like everyone’s help to build a kick a@@ HHO cell.
I’m in stalling it in a 2007 Chevy impala, with a 3.9L engine.

I would like to know what would be the best design for this type of vehicle.
1. how many plates and what size.
2. what types of sensor, If any.
3. what type of electrolytes would be best.
and another information you can give me to help my build.

Thanks

Welcome!:D You've got a ton of research to do.
The best thing you could do right now would be to take Gus's advice to another newb: Go to the main page, click on 'General Discussions', and then click on '101'. Read everything from that point right up 'till today and you'll have a pretty good understanding.