You should just call Fred (evening worked best for me - PST) and talk to him. Like Richard mentioned, he does them in batches, and when he does, he will have some that are from cores he's collected and they'll become extra 'Restored' inventory, besides the ones he's doing for individuals that send them to him. He put's extra's up on eBay, so you kinda know he's finished a new batch. He has to wait until he gets enough of them to make it more economical for him to do them in numbers. Fred has a vast knowledge of the various fuel pumps and has what sounded like, a large inventory of cores. He may have a date code correct one for your car and I'd bet he's know what was the change-over dates as well. He's fun to talk to too!