I can tell you what im using.. Has worked great for me so far.
-Hooker Comp or super Comp, ceramic coat.
-regular mr. gasket header gaskets soaked in water then bolted on.
- E-clip fastner system.
mr.gasket collector gaskets.
The trick is the eclip fasteners and the way hooker does thier collector area. Instead of having a tiny lip to seal on, they use a full 3/8" gasket surface.
I know there are better and more expensive header gaskets out there but these work for me and only cost 11.00