need help decoding A holley

[Tommy]

Numbers on air horn are:

793981
list-7386
2046

Tommy

[VintageMusclecar]

1976 GMC truck with a 366 BB.

[Tommy]

Thanks, I couldn't get Holleys PDF files to load properly. A fellow cleaned out his "junk" last month and that particular carb looked different from the rest of the carbs I bought from him.

Tommy