There is an adjustment screw that sits against the "dashpot" and you turn it right (in) to lower the idle and left (out) to raise the rpms.
probably a bad idle air controller.
You can adjust the idle.
turn the idle screw!
Turn the Idle Adjusting screw.
Most likely computer controlled and not adjustable
You cant. The idle is controlled by the ecu.
The idle speed is computer controlled
All Ford vehicles cannot adjust idle nor timing wich is pre-set at the factory and the computer sets the idle and timing, vehicles after 1990 no longer can be adjusted.
A bad IAC (Idle air control valve) or a vacuum leak or both.
Don't mess with that adjustment. The idle speed is electronically controlled.
Ford stopped manufacturing the Falcon in 1970.
Hey JustinThe idle speed is controled by the ecm and is not adjustable. Goodluck, Joe You can adjust the idle air screw. Get a haynes manual it will show you how