Hey guys,
I managed to do the same. P8P67 w/ i7 2600k. I initially did it to an HDD but upgraded to an SSD afterwards.
Biggest thing that helped me was making sure the drive is connected to one of the Intel controllers (grey). I'm running on 10.12.2 with no issue currently. Disabled USB 3.0 in BIOS as well for the install.
Profile used is iMac 12.2.
I was on Chimera on Yosemite before this and had trouble getting clover to migrate/work at all but after some persistence I'm running on Clover w/ 10.12.2.
I'm still trying to get USB 3.0 working though. If anyone has tips for that it'd be appreciated.
I also have an ASUS P8P67 rev3.1 motherboard, with Intel Core i7 2600k CPU, on macOS HighSierra 10.13.1 (17B1003). The system does not always use the installed NVIDIA Web Driver for video card, even though I set nvda_drv=1 in Clover. Also, in /EFI/CLOVER/kexts/Other/ I am using the following kexts, for now:
FakeSMC.kext (mandatory for successfully booting macOS)
FakeSMC_ACPISensors.kext (plugin for FakeSMC.kext)
FakeSMC_CPUSensors.kext (plugin for FakeSMC.kext)
FakeSMC_GPUSensors.kext (plugin for FakeSMC.kext)
FakeSMC_LPCSensors.kext (plugin for FakeSMC.kext)
AppleACPIPS2Nub.kext (for my PS2 keyboard)
ApplePS2Controller.kext (for my PS2 keyboard)
RealtekRTL8111.kext (for video card)
VoodooHDA.kext (for audio card)