Pontiac FIREBIRD 1972 Service Manual page 679

ENGINE FUEL 6B-25
VACUUM BREAK ADJUSTMENT (Fig. 6B-28)
!EN LOWER
VE AND
PLACE GAUGE BETWE
USE OUTSIDE
VACUUM SOURCE
TO SEAT DIAPHRAM
DIAPHRAGM
PLUNGER IN UNTIL
IT SEATS
i
END
Fig. 6 6 - 2 8 Vacuum Break Adjustment
CHOKE COIL ROD ADJUSTMENT (Fig. 6B-30)
CHOKE VALVE
Fig. 6 6 - 3 0 Choke Coil Rod Adjustment