You will need to tinker with two pipes. both need to be moved over just a bit to clear the steering box. You will need to measure the diameter of the tubes, and order a couple of steel J-bends that are sold by any of he big houses, summit, jegs, or any of the header builders, Hooker, Hedman. Make your top cut, and then cut from the collector, but leave enough stub on the collector as you can so you can weld the new tubes on. You might even have to stagger the lower cuts just to make sure you can get all around the tube. This will take a little tinkering, but you cut the j-tubes in strategic places to create the bends necessary redo the pipes. I would think you will want to start at the pipe closest to the steering box, making sure you have enough room to get the other pipe installed next to it. A little bit of a pain I know, but it can be done.
The other choices are cast iron headers from 12bolt.com
https://www.12bolt.com/store/p153/Exh_Manifolds_Dual_Chevy_194-230-250-292.htmlor the shorty headers that Clifford now sells (no long tube headers any longer, just the shorties)
https://cliffordperformance.net/store/ols/products/52-0011-street-rod-headers
