Today I'ill Gonna show you how to Overlock your galaxy y to 900mhz.
Its very easy. We can easily overlock it to 1ghz but it will overheat and maybe brick your phone. Its better to overlock it to 900mhz.
It will increase gaming experience + give u no lag in some laggy games like GTA 3 / Asphat 5-7 / gangstar 2.
Now you have to do is
Download this zip file : Link
Now place it in sd card not in any folder
Than turn off your phone
Go in recovery mode.
apply update from sd card choose the overclock.zip file and press home button
Now install this Apk : Link
Install and open it : Link
then apply From 832 - 900mhz.
Thats Its !
Any questions just comment