Mac: 1.go to "all my files"2. search "Library" 3. Go in library-->application support-->techninc launcher-->tekkit-->config 4. look for Imibis Core 5. change black hole chest enable=true
PC: 1. press the sart button2. search "Run"3. In run type "%appdata% 4. go to techninc launcher-->tekkit-->config5.look for Imibis Core 6. change black hole chest enable=true