Windage tray with ARP

Hey guys quick question on my 340 build i have the arp windage tray main stud kit.

Question is when installing does the tray go on the studs and then torque down the nuts provided?

Or do i put nuts upside down on studs then put the tray on then another set of nuts
But then it hits the pickuo like it sits to high

For some reason they send 8 flanged nuts with no directions

Also how close should it hug the block?