I'll have to respectfully disagree with you on the choke thing. When you put the pedal to the floor, If the choke is set up correctly and the bi metal spring is cold the spring will pull the choke on, which in turn will pull the fast idle cam up releasing the throttle will cause the idle screw to set on the cam for a fast idle to warm up. After the engine has warmed up the bimetal spring opens the choke and the fast idle is no longer held in position by the choke, the cam weight is supposed to return the cam to normal position by itself through vibration but sometimes the pressure of the throttle keeps it in the fast idle position. it's common to have to goose the throttle to release the fast idle cam The action of opening the throttle all the way will activate the piston in the accelerator pump well and squirt a shot of fuel into the venturis, Sometimes one can slowly open the throttle and avoid a shot but a normal pressing the pedal to the floor should give the bores a shot.
