Howdy Paul,
Is this the pump you're looking for?

If so, Rock Auto and others has this pump and it evidently fits a whole bunch of different Y-block powered cars and trucks.
Why rebuild an old pump when you can get a new manufacture Airtex pump with a guarantee.
AIRTEX Part # 6523 More Info {Mechanical Fuel Pump}
2 BBL. CARB.
I think the glass bowl is gone nowadays for safety.....
http://www.airtexproducts.com/aboutairtex.html
Cheers,
Rick