Edelbrock carb on factory spreadbore intake

All you need is Edelbrock #2732. You don't need any of those stupid 1" thick aluminum spacers that always leak.

This one: Edelbrock Carburetor Adapters 2732

Looks like they don't have them in stock. O'Reilly stocks them. Your local O'Reilly should have one hangin on the wall.
Kim,Summit has them now,back in stock.I have used them before,work great