Power Steering Pump Question

Hi Everyone,
I am trying to get the proper pressure hose for my Saginaw pump that was on the 340 when I got it. The engine orginally was in a 70 Demon and into a 87 Dodge Cop car and that's I got a hold of it.
Anyway, with the pump installed the port is only about 1.25" or less away from the motor mount. I can't tighten the belt as the hose is against the motor mount, which I am not about to touch. My 72 Duster had a /6 and now has the re-buildt 340. Maybe the Saginaw pump is not orginal to the 340..?
Has anybody else run into issue with a Saginaw pump on a 340 in a 72 Duster..?
Thanks for any help.