She looks good weight wise. I have a 6week old bumblebee that weighed in at 99g before her last feeding a couple of days ago. She took a week to get started so it sounds like your girl is right on track.

As for how much is healthy, it all depends on the snake. Some grow quick and others don't. As long as you are feeding an appropriate sized meal every 5-7 days, she should grow just fine.