Wow....so you have to modify an original car that came from the factory like that back then?? I had an issue with a 71 340 Cuda in Texas (yearly safety/emissions inspection) because the original air cleaner didn't have the snorkels with the hot air stove set up. I got out the book (their inspection station book) and found where it allowed it if the car came with the facsimile fresh air hood which was still on the car. Texas also went through that side exhaust deal but gave up on it. If you can't find where it's allowed in their books (since the car originally came with it), I'd be writing some letters to your state rep. Also, there should be some allowance for antique/classic cars.....