These carbs, with the electrical choke set up right, will start with just turning the key on vehicles that get driven regularly. My experience has been to not touch the gas pedal unless you have to. If the vehicle has sat for weeks, or months, you may have to cycle the pump shot to get gas to the engine.

Double check that the choke door is not closed all the way either. I think the book calls for a gap the thickness of a paper clip between the edge of the choke door and the carb body.

Also if it has an electric choke the piston under the black plastic cap can get gummed up and cause hard starting and a rough idle. A shot of WD-40 will free it up.