Depends on what you are after. Easy installation? Great spark plug access? Easy access to work in the engine bay? Ground clearance? Bolts up like stock? and... How important is squeezing out torque and horsepower?

With a big block and B-body you have a decent amount of commercially made choices. Look at each, find pictures of them installed, etc and decide which ones are for you. The pipe diameters you want will depend on the rpm range you're most interested in.

Hooker Super Comps etc.
Dougs
TTI long tube
TTI shorty (sort-of stockish headpipe location but points more out)
Sanderson shorties (as far as fitting, maybe with a b-body)
Schumacher (This a tri-y)
Headers by Ed. (if you can find a set, easy bolt in, equal length, may have poor ground clearence)

I'm sure i've missed a few, but the point is look at each as each one has a different way to get around the steering and the starter etc.

Shorties are just that. Headers with very short primary tubes and usually short collects as well. You'ld think this would make them an easy fit, but that's not always so.