For a street car. I'm a fan of manifolds. There are several good systems out there. I have manifolds and 2.5" TTI full exhaust on my Road Runner. Accurate is also excellent. If money is tight check with your local shops for a custom bent system by them off the manifolds, it won't be mandrel bent. but plenty good.

Headers? You get what you pay for Doug's or TTI's are good money, but will stand up to daily use... $100 headers will be loud, leak, and rott just like they always have.