Officially Minecraft is not able to run builds that have more than 4096 new blocks. But the modification called NotEnoughIDs able to remove this restriction. With this modification you will be able to further modify your favorite game!
How to install NotEnoughIDs Mod
- Download and install Minecraft Forge
- Download a Mod
- Unzip it and copy to C:\Users\User_Name\AppData\ Roaming\.minecraft\mods