A body big block power steering gearbox

It has stock manifolds, but want headers. I've been told: Firm Feel gear box, with TTI headers......
I found the answer in my 68 Barracuda. RMS front suspension with a power rack. No torsion bars or box to get in the way. My TTI's fall into place. Mine is a 416 SB, but it would have to make life a whole lot easier even with a Low Deck.