r kits and party

Does any one know where I can get repair kits and parts for a Zenith Carb model 1510 MVM2. Updraft carb with 4 venturies in it. Goes on a 1953 KW Firetruck with a 935 cu.in. Hall-scott engine. Tag numbers are outer 404157, inner 11011. Original kit # K2171.
Thanks Dan