Holley R-5147B carb?

on my duster, runs fine, i was told it was used on 225 slant, all body types. the fuel inlet is in froont of carb, just wondering what years it was used and if anyone has experience with it.
i will jsut say it gets good mileage as i don't want to start a war by giving any numbers!!!!? thanks
Hey did you have any luck finding anything about this carb I have one too trying to rebuild it but don't know what kit to get thank you I have mine on a 1965 dodge dart slant six