I have the 61WP headers in my car, and recommend them to those that want power steering with an a body. The fit is so tight you're going to need fitting (aka- Hammer).

You can run the 5.7 truck gasket with the milodon pan. The first time I installed it there was a leak - the gasket ribbing doesn't line up with the pan in the front corners. The second and third time a little mopar brand rtv solved the issue.