That may be close, but in my case no cigar. There's a cat in the monza but no O2 sensors or computer or anything else that a computer would require. BTW it's on the second cat, I had to change the original one because after 25 years of running 91 octane through a 2-barrel carb, it finally got plugged up. And it passed CA smog check every year after I got the engine ignition and fuel dialed in after it was declared a gross polluter. It'a amazing what a 16:1 air/fuel ratio will do for a car.
