Technical Adding choke to Holley 9776

High group,

I'm looking at a set of Holly 9776 which are 450 CFM carburetors.

These carburetors do not have a choke, they do have the horn but no holes drilled in it for a choke ****erfly.

Has anyone ever drilled the holes to add a choke to one of these carburetors (or carb similar) and how did you go about it

Thank you.

 

That is a tunnel ram carb…. I guess there’s no reason why it can’t be done.
Running it as a single carb?

 

Thank you Area 51,

Im considering running two on a low riser dual quad manifold on a Ford FE 390.

John