Steering effort for manual 16:1 - should it be this high?

66fs is correct. This is why I converted to a Firm Feel Stage 3 box and a 850 PSI Saginaw pump. No more slow ratio for me (24:1) and a firm steering feel with just enough assist at slow speed to drive the car at neighbor hood speeds and back out of my garage. Only regret is not going Borgensen box for a faster ratio but I'm not changing now.

Cost, weight, parasitic drag aside, The thought of installing power steering again gives me pause. The OEM power steering box was a monstrosity. I had to unbolt the header and lift the motor to get it out...and it still took a long time to free it from the engine bay. LOL. Getting it back in would almost certainly be worse.

How was the install on the Firmfeel box? It's a different casting, correct?