The idle speed and smoke... First two important questions
Is this before durring or after warm up?
is the choke open or closed?
Does the car idle okay or sputter?
If or when the car is fully warm does the up and down idle go away?
did you try removing the #19 manifold vacuum.
Also try adjusting the idle once the car has fully warmed up...
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If the surging still doesn't go away when the car is fully warm reconnect #19 to manifold and use the thorttle stop screw to set the idle and disconnect #6. make sure you plug #6 where it connects to manifold vacuum. the throttle stop screw is the big black screw at the back or front of the carb, you can usually turn it by hand...
Warm up the car fully, If you have an automatic you Set the thorttle stop screw slightly above 1,000 rpm so that when you put the car in gear the idle drops to 1,000 rpm. If you have a manual car try and keep the rpm's about the same 1,000 rpm idle but lower it if the idle is too high when in neutral... too high meaning 1,300... try and get it to idle nice and still be about 1,100 in neutral.
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If you have trouble with the choke not opening fully once the car has warmed and you feel like the choke is still choking your motor... up you can try to use a metal wire to pull open the choke plate and hold it open... careful that you only affect the choke plate and not the throttle linkages... open the chokle and run the wire as shown in the image below.
readjust idle speed as nessecary... remember only hold the choke open if it's doesn't open by itself after the carb is fully warm. make sure you lower the idle if ide is too high.
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