Did all LD4B intakes come with "CHRY 83613" stamped on them? I ask because I just put this manifold up for sale on eBay and am wondering if I shouldn't be selling it (I guess it is too late now!)?? I don't plan on running a 318 in my car, so it isn't that big of a deal. Are these rare? I have no idea, it was used in my 318 Dart before I put it in storage for the past 14 years. Thanks for any info!!