Hooker Comp Headers

I am getting ready to install my freshly rebuilt 318 in my 73 Duster. The car has power steering and power brakes. The cam is a Comp XE268 and the heads were milled a tad, so the compression will be up a tad from stock. The rest of the internal components, with the exception of the moly rings, is stock. The converter and gears are stock too. I picked up a set of hooker comp headers from Jegs for about $165. I wanted TTI's, but funds don't support it. I want to drop it in with the headers without tearing too much apart and modifying it. What will I need to do to make these suckers work, or should I just stick with the damn 318 manifolds?