I am almost ready to re-install my heads using RJC bullet proof head gasket and ARP studs with hex nuts. I will be using Permatex ultra black as my thread sealant. The block is still in the engine bay so I will have to place the head gasket on the block, then the head and then screw in the studs. Should I place sealant in the bolt cavity before I place the head on and then screw the studs in. Or should I place the head on the block, leave the bolt cavity dry and put sealant on stud threads and then screw through head and into block. My concern is the build up of sealant between the head and block. Any suggestions? What works best.