Have you looked into big block A body headers?

What about hugger headers or is that what you refer to as shorty headers?

http://www.protuninglab.com/hds-moparbb-v8.html

That is kind of an oddball chassis.
Don't take that wrong.
I love the 880's.
The predecessor to the C-body.
Kinda heavy aint it?
I would be looking at building torque instead of H.P
Logs would not be a concern of mine.

If I knew longtubes would fit, I'd get them, but I don't think any for the popular bodies will work. The drag link, pitman, idler, and steering box are forward, and the torsion bars are further outboard on my Charger. The drag link and steering box are further back on the 880, and the torsions are further in. Shorties aren't for me. The HP manifolds have 1-3/4" area, and people are getting 500HP out of them. That's fine with me. Build for torque, but if anyone knows of headers that would fit, let me know.

These are TTI C-Body headers, followed by the 880. They look great, but my torsions would run right through where the tubes are, along with the pitman and idler, I think.

The 880 is the same as the 300 in 64, chassis wise anyway.

Hedman claims these fit the 880. part number 78030

http://www.hedman.com/site/?d=119&dt=108

Could you use Max Wedge exhaust manifolds? Seems like they would work in that chassis, and flow decent, too.

ceramic coating the inside and outside of the manifold seems to be better bang for the buck than say extrude honing, keeps a big source of heat out of the engine compartment.