I believe you need this pressure hose.
http://www.bouchillonperformance.com/inc/sdetail/990/1013
I think the hose you have is for 73-up K-Frames that clear the spool mounts but hit the biscuit mounts of the 72-down when using the 73-up brackets. The 69-down have brackets that raises the pump because the water out let for the water pump is just below it on 69-down cars. Your set up also looks to have a passenger side 70-up water pump AKA aluminum water pump.
Or you can find 70-72 Saginaw brackets to move it up.
The Bouchillon hose is shorter where it connects to the pump to clear the K-frame.
Also Reference:
http://www.forabodiesonly.com/mopar/showthread.php?t=67951