Your question would be better answered over in the V-Diet Support forum, where more people who've gone through the V-Diet can reply.
Add one HSM to the day's menu, so you'd have an HSM for breakfast and dinner or lunch and dinner. Base your carb intake on your training, your current size, and how lean you now are (or "how fat you still are", depending on your general outlook on life).
If you dropped a bunch of fat and built muscle, you likely improved your insulin sensitivity and should be able to handle a few more carbs than before you did the plan, just don't jump right to 600g a day or something crazy. Some people use the post-V-Diet as a perfect time to get on Indigo-3G, which can further help your body handle carbs.