I'm automotive-ly ignorant? I can't believe you even bothered looking. Who's ignorant now? And why are you so insistent upon blind obedience of emissions laws? What if my car is a 72, before emissions laws applied? What if I'm using and EEK powertrain for an off-road vehicle? What if my car really doesn't exist and I'm simply posting a question here to get a theoretical answer? It would be nice to get a helpful response instead of a post saying "I'm right and you're wrong," since I have not provided an answer to my own question, I cannot be wrong. And actually you have not provided an answer either and thus you cannot be right. So please answer my question or stop replying.