Help identify please: power or manual gearbox?

People replace power steering boxes for manual for several reasons. I replaced one on my duster to make more room for TTI headers. Also there is the weight savings if you drag race. Manual box is aluminum and much lighter plus no pump.
If the car is not a daily driver, you can get by with more steering effort.

Ah, I see. That makes sense. I used to have a '65 Mustang with manual steering and I had no issues at all with steering, so I'm a believer when you say I can live with manual. Although, since it's already power I might as well keep it that way. Thanks for the explanation!

Engine size, casting date and casting number are on the sides of the engine block. I forgot what side has what on it. Might need to crawl underneath with a flashlight.

If it is a 318, a single plane isn't a good choice, particularly on the street, or even if it is a 360. 360 heads could also reduce 318 compression because 360 combustion chambers are bigger than in a 318 head. But we don't know what all has actually been done to it.

Okay, I'll take a look over the weekend. I wish I could work on it more tomorrow, but I have to go back to work. Boooo! Well, I have to fund this adventure somehow I guess.

Yeah, the single plane manifold was a concern of mine, and I wondered if it's the reason why the brakes are so mushy and pretty much almost non-working. I wondered if it was due to not enough vacuum because of the manifold.