Holley 1 barrel econo mizer

Can add some info that may help some potential buyers.
Because of the global fuel crisis, in the late seventies Holley introduced a new separate line of carburetors called the Economaster.

2-304 (8994) is listed as a fuel efficient replacement for the 1975-1977 Holley 1945 one barrel carburetors with 225 engines. May fit other year 1945 carbs but is listed for 75-77 Mopars.