I live in CA with all its wonderful smog laws and I am wondering what performance mods I can do on my 92 3.1 rodeo. I would like to put a cam and roller rockers and maybe some other things I have read about. I know that any mods must be CARB(CA Air Resource Board) certified to pass smog, but are there any that can be done without raising emission levels beyond the stock vehicle levels. You know, what they don't know won't hurt 'em. Any advice is greatly appreciated.