Apparently there are more affectionados than you counted on. It is a mistake to Imply to many of the followers of this site that only Big blocks are popular, or worth any money. Many readers are likely younger hobbyists, that actually might believe the myth that only Big block cars are valuable. I believe this is FBBO, not FBBBBO.(Big blocks only)Think for a minute a newby knows of a clean original with a small block, but passes on it because he was told of the myth. That is one less enthusiast that won't buy a nice old car. Bad for the Hobby. Then Imagine for a second the likelihood that a fellow Mopar Guy owns that car, and wanted to sell it in order to get another, or move up. he can't sell, Then, The owner of the more expensive car can't sell. and, the newby gives up, because he listens to the Myth that only big blocks are valuable, so since he can't afford one, he does nothing. If you want to keep the hobby locked up to only the few that can afford that Roadrunner or R/T, that is a good way to do it.
There is a large group of people that follow this site that are Visitors, and we don't know what level of experience they have. I do not ever encourage young Inexperienced enthusiasts I meet
to Buy small block cars and try to sell them on "converting to a big block".It is not in the best Interests of the hobby to create money pits for the newbys.
It may be hard to believe, but When Millenials see my small Block dart sedan, they say: I love the whites,or Finally four doors!" Kids today do not care for Hardtops, and did not grow up with them, or Big blocks.