Cold starting

Question about choke unloader adjustment 71 Dart 2gv Rochester carburetor when I hold the throttle under the hood wide open it will move the valve but when I use the accelerator pedal full throttel it does not open choke valve, tips on adjusting it so I can activate it from the inside? Thinking it might be the cable adjustment
Sounds like the pedal isn't getting full throttle at the carb. Inspect the pedal and linkage under the dash for floor mats, carpet etc. You might need to adjust the cable at the carb. Does the carb have unloader/clear flood linkage?