Ok. Likely those hoses go to a smog pump, you should be able to remove it and get headders. Both kinds of wires work, over the covers need looms but don't have heat issues like the under headders do. If you want clean looking and you are able to use a standard HEI cap, get a crossfire cap, there a internally wired distributor cap that allows the wires to each side of the engine to that side of the cap, so wires don't cross over. The only supplier of the crossfire cap I know of, is www.yearwood.com and it is pricey, at 49.99 but worth it if you want a clean look.