I have an static site with good Content and PR 3, Problem is i m not getting Ranking on any keyword. However i am working on One way links, Doing quality link building etc
You might required rewriting all the meta tags of your site according to those keywords whom you selected. I mean on-page optimization of your site might help you out
Its really hard to tell without knowing what keywords you are vying for. If you are targeting top keywords, it would require a lot of backlinks with proper keyword anchoring to be able to have a good ranking.