It's not really boring the hub. Just taking a lip off. As above the 14mm VE rim will flop on the 12mm studs. You can use genuine GM mag wheel nuts and caps or specialty nuts with a huge chamfer so they centre perfectly.
High guys new member here. Got a set of sv6 vf wheels wanting to put them on my vz have read alot about machining ve wheels but these dont have a lip they have three lug type bits jutting out hard to measure as they dont really line up.