HDK with 6.1 hemi
Hi Dustin
to get the most exhaust manifold clearance, slide the steering column as far as possible to the drivers side, To get the max, I sometimes slot the holes slightly on the columns firewall bracket.
I mocked up my 6.1 with Jeep manifolds, they tend to hug the block closer than any other factory manifolds. In my mock-up, I use a universal at the rack and another further up to connect to the steering column.