Bolt torque discussion

I use whatever manufacturer specs who made the bolts or studs. If using stock stuff, I go with the factory specs. ARP for instances gives specs for their bolts and studs. If I use ARP I use their specs. Kinds simple, really.
I ordered a custom set of studs to fasten my front motor plate to the front of the timing cover.
The long 4 bolts go into the block,2 go into the aluminum thread cover, no recommendations from arp as this is custom.
What would you torque these studs to and would you torque the ones threading into the aluminum the same?