My gut feeling is this might be spam. While it could be a miss type, the flat head 6 size he posted is wrong. Plus, how could you open the home page, see the categories and post in the Model T section if asking about a 53 F3? If you look in the Questions and Suggestions section this goes on often, one time posters that ask what look like good questions (if you read some of them, they are just a little off), are directed to the correct section but never re-ask their question. If this is not the case, I am sorry.
There have been cases on the postings on other forums, people expecting instantaneous reply's to their questions. People need to remember that most of us here don't walk around with our communication devices in hand 24/7 and may not see the question till later, so the posters need to check every so often to see if they have a reply.