Help with throttle and carb linkage on 69 dart, air gap intake, holley 1850-s carb

Automatic transmission or manual? If automatic, A727 or A904? Do you have ANY of the kickdown linkage parts? Stock valve body or reverse manual v.b.? This will determine what you will need for throttle linkage parts, since they all work together from common linkage points. If you have a manual trans. or a manual valve body, it's not an issue.
To start with, get a carb lever adapter for Mopars- it bolts to your carb linkage so it matches the working arc of the factory Mopar pedal.
Holley Throttle Lever Extension
Once we know what the rest of your setup is, we can recommend correct parts.