BG Road Demon 625

[Nick_nl]

Hi Guys,

Does anyone have experience with a BG Road demon 625? It has strange secondary boosters installed.
On my carb the all the boosters were lose and came out super easy. The secondary throttle blade size is a 1.69 and the primary is 1.56.
I have 2 questions. What would be a good booster as a replacement on a mild SBC 350 and are these special boosters?
The hole in the main body is larger than "stock holley"

Thanks Nick

[Nick_nl]

Hi Guys,

Id did ad a few pictures, though the forum software has some issues with this.
Copy and paste works though

https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_055537.jpg
https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_055612.jpg
https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_055622.jpg
https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_055723.jpg
https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_060026.jpg
https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_060038.jpg
https://www.sleijpen.net/foto/Bel_Air/carb/Demon625/20250124_060111.jpg