No one seems to talk about cam overlap anymore. The smart cam people will correctly tell you that the overlap is nothing more than the outcome of picking the right cam opening and closing events. But I believe that it still has a place for us amateurs that are trying to pick a compromise cam, which is exactly what a max. power with a good idle cam is. So with that, consider a cam with a 112° lsa, and an overlap of no more than about 60°.

My cam has over 240° @ 0.050" and 54° overlap. Idles with 13" vacuum in gear at 750 rpm. It drives in 3 rd gear at 1100 rpm. It has the Indy 2D.

2" headers do seem a bit much, but then again, I don't know much about big tube headers.