The reason builders don't work on the Demon carburetors is the design of the unit does not allow certain modifications that most builders like to perform to improve performance. The Demon carb line is designed with "shiny" appeal and its a great carb for the kids. They love shiny. But as far as being superior to off the shelf holley designs, testing by many customers have seen varying results.
Your post comes off like you work for BG or have something against the people at Holley (they're hard working people too). As far as your comment concerning Holley and their situation, there has been a rumor that Holley was going out of business since the 1930's. 75 years later....
Sorry if this comes off a little gruff, but Holley employees are proud of their products and probably like their jobs too and don't deserve a rumor starter or what appears to be an unfairly biased opinon.
Its a competitive market in America. You have to work your butt off to design products that work, so the product will sell. You have to support the customer after the sale and you have to be price competitive. The old saying "Price, Quality or Service" pick two no longer applies. People expect all three. I do when I buy something and I do when I sell something.
Thanks for reading.
Patrick James
PRO-SYSTEMS Worlds Fastest Carburetors