EFI folder of OpenCore hackintosh loader for motherboard Asus P8P67 EVO rev 3.0 I have the successfull instalation of Big Sur with this loader configuration.
My PC configuration:
BIOS shuould be updated to the last version 3206: https://www.asus.com/supportonly/P8P67%20EVO/HelpDesk_BIOS/
USB loader you have to do yourself, the official OpenCore Guide can help you with it: https://dortania.github.io/OpenCore-Install-Guide/installer-guide/
⚠️ In the BOOT menu you should to choose your drive with
Windows Boot Manager. It helps to run OpenCore on this motherboard.