That's how a carb choke works, as engine warms up the choke opens and at the same time backs off on the fast idle when ya tap accelerator. Really shouldn't use any type of lubricant on the linkages it'll gum em up, sprayed off with carb cleaner is best. If ya have any trouble with that Q-jet, I can shed a lot of light on what it wants to be happy..
Abner-73 He started it all in 1979 (plow truck now)
Bufurd-69 Fixed up to take Abners place as DD
Delta-70 Built for fun, 455 Olds, T-18, D-20, 4:10 gears
Humpty-74 J-20 4BT, NV4500, 30+MPG
07 JK Wife bought new...
13 Grand Cherokee Trail Hawk, wifes new ride