The 440 is such a poor fit in an a body, why not make the same power with a stroker small block. Everything fits nicely, no header issues, rubbing, vibrating, etc.
440 is not a poor fit, the problems are always with the headers and steering. I run manual steering and Schumacher headers with no vibrations even with a Schumacher torque strap. I know this tread is about power steering.