Q: Hard Drive Space?

Ok so originally I had a 10.6.8 partition and a 10.8.4 (actually it's 10.9.5 but still says 10.8.4) partition. I decided to delete the 10.6.8 to free up the space for Mavericks. The problem is it only says I have 4 GB left on my 10.8.4 hard drive but this can't be the case since I resized the partition to take up the full 1 TB hard drive. In the "Get Info" section it still reads that the partition was the original formatted size around 144GB. What to do?