440 into A body and power steering?/

Hello All,
When installing a 440 into an A body (71 Scamp) and using the Schumacher motor mounts and a small block "K" frame, can the power steering box remain? Or do I have to switch to manual steering.. And if the power steering can stay, are headers out of the equation??
Thank You ...AL
(would a six cylinder "K" frame be better??)