Wire the choke 100 open, you can live without it but itll make cold starts a little cranky. IF your choke is not 100 open at warm or about 5 minutes after you start the car, your choke is misadjusted or just bad. There may be a screw on the base of the bimetallic choke base that you can turn, you want to turn it so its wide open when warm. The heat from the intake causes the spring to 'unwind', when you set the choke with your gas pedal on a cold morning (1 pump) it 'cocks' the choke closed (actually it just releases the choke mechanism which is now under cold spring tension, with a snap) which also catches a little cam that holds your throttle open a tad. you should be able to just turn the key to start with no other pedal play and it will light off and be at your fast idle (which can be adjusted ~1100 by screw) once the car is warm, you hit the gas again and the choke unloads (due to a warm spring now) because the little cam that holds the throttle open lifts,and releases the choke rod which is now under a warm spring tension (opposite rotation than cold). Now your throttle is closed to idle position and your choke is wide open. The vacuum unloader is there to force a closed choke open slightly when you mash the gas when still choked. The choke must be fully opened at warm. If not make it so. Those bimetallic springs wear out and can be replaced with a new choke unit.
