Which Carb kit do I need

Are you rebuilding it because it needs it , or for refresh /preventative maintenance . Search "Holley 1920 " here for comments.
It needs it. I'm getting the Walker kit # 15519A. I'm having a hard time finding a float for it. Not sure if it has the original brass float still in it or not. I may get a choke thermostat for it too. Thanks.