K 30 1 Ton Pickup 4WD V8-350 5.7L VIN M 4-bbl (1983)
Dashpot: Adjustments
Fig. 14 Air valve dashpot adjustment
Using an external vacuum source, seat vacuum diaphragm. With the air valve completely closed, place gauge specified in the Specifications Chart
between air valve rod and end of slot in air valve lever. To adjust, bend rod at air valve end, Fig. 14.