If you are using a SBC power steering pump with a MII power rack, there are some valves you can get to reduce the pressure from the hard pumping SBC power steering pump to the low-pressure required MII power rack. Most of the Rod Shops carry these.



Now, that having been said...



If you want the poor mans remedy, pull out the fitting on the back of the pump that has the spring and pressure valve. Cut one full coil off of the spring, and washer out the valve from the PS pump body until the sensitivity is more "normal" to you. This is essentially what the aftermarket valve will do....though not perfect, it's cheap.