5.9 Main Cap Torque Specs FSM vs Larry Shepard?

I go to 85 if using factory bolts. But I use a good thread lube on them. Like ARP. Any time I use an upgraded fastener (like an ARP main stud or bolt) I use that manufacturer’s listed torque spec. I said all of that to say this, the “correct” torque is whatever was used when the line bore/hone was done.
This.
I'd run ARP and whatever they suggested, if I had the money at the time.