#6R 516DB..t/y

#6R 516DB..t/y

First off, Is that the List number off the choke horn? If it's not, (which I don't think it is) ain't no way anyone is gonna be able to help ya. Could be wrong though.

^^thanxs for the reply..No its not off the chokehorn(a mem on TChevelle said it was a casting#).I dont know a chokehorn from a shoehorn.:eek: ..Could you tell me what it looks like?..I did find another # it is 7455.

If you go here
http://www.holley.com/TechService/Library.asp

and click on "Carb numerical listing", a model R7455 Holley shows up in the list as a 450cfm. This might be the carb you have.