I would say 3 times a day and about 3/4 cup each time. When she gets about 6 months old switch to 2 times a day and about a cup each time until she gets a little older then cut back a little to maintain her weight. If her poop gets a little soft cut back on the amount of food a little.
Others have already provided some good suggestions about food and feeding.
My addition is to consider the size of the parents and how big the Bullie will get. While the listed amounts are general, it could be too much or too little. I agree with the transitions of 4 months and 6 months. Watching the "condition" of your bullie along the way is the best indicator of how much to feed. Will your bullie reach 35-40, 55-55 or up to 90 lbs?
Never free feed a bullie. Bullies are also ALWAYS hungry and looking for food. Instead give Kisses and Hugs !
Ideally, I would feed your bully baby 3 times a day, but if you are like us that was impossible. Time wise it never fitted into our work schedules. So we had to stick to twice a day.