Gee, Sarge, I thought it was so BLATANTLY OBVIOUS that old vehicles were grandfathered, that there was no need to mention it explicitly. In fact, I had no idea what your beef was, until you spelled it out.
...but yeah, nobody's ripping carbs out of Model Ts, LOL.
When I make a mistake I am the first to admit it.
Fair enough: I made the mistake of assuming you could follow along with me, "understanding" that my comments were directed at MANUFACTURE OF NEW vehicles, and not forced retrofit of older ones. I now admit it: I was wrong to assume that you'd be able to do that.