It been months using a custom ROM for Galaxy Y and finally i bumped on a this new custom ROM name Jellyblast V3. Its actually a theme with Jelly Bean for Galaxy Y. If you want to use a android jelly bean version on Galaxy Y phone you can use this custom ROM.
WHY CUSTOM ROM?
For me, using custom ROM on Galaxy it is more faster compare to a normal default stock OS, Less memory usage and best of all it save battery a lot even you are playing your phone.
Download Information: Here