Float Level (Wet Setting)

Warm engine to normal operating temperature. Ensure vehicle is on flat, level surface. Stop engine. Remove air cleaner and air horn attaching screws. Leave air horn in position on carburetor. Start engine.
Allow engine to idle for a few minutes to stabilize fuel level. With engine idling, remove air horn and gasket.

Fig 1: Float Level Adjustment (Dry Setting)
Courtesy of FORD MOTOR CO.
Using "T" scale, measure distance from machined surface of main body to level of fuel in fuel bowl. Make measurement at least 1/4" away from sides of bowl for accurate readings. See Fig 2.

Fig 2: Float Level Adjustment (Wet Setting)
Courtesy of FORD MOTOR CO.
If level is not within specifications, adjustment is needed. Stop engine before adjusting to avoid fire danger from fuel spray. Bend float tab (contacting inlet valve) up to raise fuel level and down to lower level.
After each adjustment, install air horn with 2 screws, start engine and idle long enough for fuel level to adjust to new adjustment. Stop engine, recheck fuel level.
When correct level is obtained, install new air horn gasket; replace air horn (install I.D. tag). Be sure plastic dust seal on choke rod is positioned properly and does not bind rod.