Small Block Windage tray

360 Small Block, I want to install a windage tray and I have a few ?'s.

I have 4 long bolts, 4 short bolts, and 8 flat washers. Do I use 2 washers under each long bolt, one under each bolt, etc.?
What do I torque the short bolts to? I got no information with it, and can't find anything on the net except articles that they were installed on engines.

Thanks guys.