Power Steering question

[BLUE49]

I have a 49 3100 with a 250 c.i. in line. I just finished installing power steering and got the engine running again. When I started the engine the steering wheel violently went to the right steering lock and made a lot of noise. I think my problem is that I have the pressure and return lines reversed. Its kind of strange that they would make both ports on the steering box the same size, or am I doing something else wrong. Both pump and box are new rebuilts from a '76 C10.
I just thought I would check with you guys before I tackle this in the am.