Someone mentioned the possibility of the car maybe starting out as a six-cylinder...got me thinking...the front susp seemed awful mushy. I told the seller, "feels like the shocks are done".
My 68 fish feels the same way and I replaced the front shocks with new "autoparts store" shocks and it felt the same. Unless the car has stiffer torsion bars and anti-sway bars they will feel mushy. Just how they were made back in the day.
You don't need or want power brakes. I don't think the A bodies need power steering either but I drive slow on the streets and only in a straight line when going fast.