The Holley model 2380G is a governed version of the basic 2300 model. These were used on most truck makes at one time or another from 1957 to 1991. They differ from the model 2300 in that the idle mixture screws were moved to the throttle body, instead of the metering block.
Carburetor numbers are stamped on the front of the choke tower. Holley carbs on Ford applications usually have a tag with a Ford part number as well. How to find Holley carburetor list numbers