California smog regulations require that my fake 403 (according by my VIN) have AIR, EGR, and the rest of that crap. I have had my 79 Trans Am for years thinking it was a 403, until I checked the casting number recently to discover it's a 455. I'm going to keep this motor, and not even deal with mounting the AIR system. Unless I can get some inexpensive heads w/ air rail holes to bolt on my 455.
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