What is she, like 4 feet long ya think? They are all different in length and girth. I have a 1600+ gram one that's close to 4 feet long and 2 that are 1300 grams that are 3 feet and 3.5 feet long respectively. Ever see one of those pictures of 5-10 people standing next to each other that are the same weight but some look skinny and others look chunky because of their height? Similar idea applys here.

To your egg question, not sure if length has much to do with number of eggs. It's probably size in general, though I don't have experience breeding and going on what I've seen on the forums that a lot of the weighty girls pop out more eggs with few lengths listed.