2 Remove the primary float bowl from the front of the carb and, from it, remove the components shown in the photo. Inspect float for pinholes and replace if any are found. Soak bowl in cleaner, rinse ...
The carburetor sitting on your vintage Mustang can be a finicky device. It has minute passages that air and fuel travel through to feed the engine the fuel it demands based on load, rpm, and so forth.