hey sloth. i just bought a california 280ZX a month or so ago, and in all of the records that the guy kept (he kept 'em all i think!) the emissions tickets were _WAY_ below the max limit. one ticket reported 0% CO at idle speeds and 14.5%CO2 also at idle. this is with CA emissions of course, and about 15 years ago as well. hope that helps
weylin