I bought them and didn't need them with my AFR's. They are just angled pieces of aluminum. If you need them I'll sell em for 15 bucks shipped.
As far as sealing the elongated bolt holes, just put some blue RTV on the bolts to keep oil from "creeping" up the threads. Do this whether you use the spacers or not.
Call Patriot or just install the bolts without the intake, lay a straight piece of wood or pipe across them and see if they are at a different angle.
I use stainless ARP bolts they are 27 bucks at Summit
http://store.summitracing.com/partde...115&rsview=sku
Or black for about 20 bucks.