1- BTDC - Before top dead center

2- D- Drive      N- neutral 

4 - When making adjustments, air
conditioner must be turned off 
(if equipped). Also, hose must be 
disconnected at vacuum release 
cylinder. The hot idle compensator
must be closed; this can be done
by pressing finger or eraser end
of pencil on compensator. On 1968

units, compensator pin is just in
front primary throttle bores; on 
1967 compensator is located in air 
horn vent stack just to left rear
of secondary metering rod hanger;
on 1966 units brass valve located
in secondary side of unit.
On 1966 models, to set stator blades
for proper performance, remove pink
wire from contact fitting on
transmission downshift switch and
connect to white wire fitting with
alligator clip; this will activate
stator switch.

5 - Turn adjusting screw in
Clockwise until engine misfires,
then turn screw out 1/2 turn

6 - If equipped, adjust idle speed 
with air conditioner turned on. 
Also, the vacuum released parking 
brake hose from switch to engine 
must be disconnected and opening
taped closed to prevent any air leak