I have a 72 cs with stock 350, historically when I start the car it start to rev high as it warms and after couple minutes I just tap accelerator and it kicks down however the past couple times ive started it the motor wont kick down after tapping accel I practically have to floor it couple times for it to do so what does this indicate?

 

It indicates your choke is probably sticking. Get some carb cleaner and spray the linkage.

 

Or the fast idle cam. Is that carb a little gunky? As Eric stated, get some cleaner and give it a good spray.

 

Thanks

 

Berryman's is the best I have every used. While you are at it, take the air cleaner off and spray some inside the carb.

 

Berrymans is the best, also spray it in the fuel float vent, and down the throat while reving the motor some. It will clean carb, intake, valves, combustion chambers. Its like a tune up in a can.