I recently bought a 79 Black and Gold T-top trans am with a 403. the current owner didn't know if it was a clone or a Y84. I bought it thinking it probably wasn't and sent off for the PHS documents. I found out yesterday it is in fact an SE and was originally sold in the same town I live now..
I won't feel so bad about sinking some bucks into restoring it now...Already got some goodies on the way from TASPECIALTIES..