Yes, I agree with most of that...and the Edelbrock 600 is what I run on mine, it's just about right. But as for the headers, it's all a matter of preference really. I did explain the issues with them and some work-arounds, and they just flow so much better than the restrictive FE flat manifolds that I feel they're worth the hassle (and I personally love the sound!) And yes, duals is a must and it's worthwhile to add the crossover tube.

And when you have to remove the manifolds anyway to install gaskets, it would be a good time to install headers and duals. If you do go with headers, be sure to use good quality header gaskets, not the typical old-school guaranteed-to-blow-out header gaskets but some of the new blow-out proof gaskets that seal better, like the dead soft copper gaskets, and then ad the locking header bolts on top of that.