If you read the Edelbrock manual again, you will see that the rich/lean rod settings are going to based on both the numbers and what you think feels right. Start out with #19 and make your adjustments from there.
- cruise - go as lean as you can without getting a surge (surge usually means too lean)
- power - go as lean as you can without getting any pinging under load
Also make sure you have a set of step-up springs to try swapping, since they seem to be very important in reducing a part-throttle bog or hesitation.