Maybe I didn't state it correctly. Wasn't trying to say the factory saw the 340 as the better motor, only that I thought the 383 was the base engine for some E-Body model and that for a small price you could "upgrade" to a 340 4BBL. Can't figure out what model it would have been (not a T/A or AAR), so I must be wrong. Had it pointed out to me in a thread on a different forum and it seemed like I remember seeing that before, but didn't verify it then and couldn't just now either.
