*Update*

So the latest is this:

TTI headers can be made to fit...

Waiting on an answer of what will fit best though...A Body or B body. If one does not come, then the shop I'll be working with will get a set of both and we'll just figure it out. Sure, it'll probably involve a couple notches or denting here or there, but it'll give me the exact header I want (stepped) without the cost of getting a custom made job.

Have to do it via the shop because I'd hate to try w/o a lift and every assortment of tools...

So hopefully in a couple of months, we can know a bit better what works.

Also I've been told that hooker 5115's can work too (B/E body headers, 1 3/4 primary tubing, 3" collector. I'd be inclined to try however, the flange isn't as thick, and I think for this engine, a stepped header will actually perform best.