Holly service date code

[Jack J.]

What would 541 represent with regards to a build date? Thanks in advance.

[Mark G.]

[Jack J.]

Re: Holly service date code

Thanks Mark, in my foolish youth, I pitched my original disassembled Holley that I had visions of rebuilding and replaced it with a Holly 650cfm double pumper. Now I'm in search of an elusive carb before my early May build date.
So I need perhaps a 441 service date code or earlier.
Jack