Brake pedal travel is to high/play

After some research I can honestly say I do not have enough info to help you any further. I've attached a parts list from 73 catolog. There are different pedals but it depends on your trans and original engine size of car, or donor car. See 5-27-1, first column "V" for Valiant (applies to Duster).

But I can tell you that there is a difference in pedal rods for sure that may be causing you a problem with pedal hieght.

Lots of unknowns. We need more info on your original car and where you got new/donor brake parts:

Manual or auto?
340 car?
Year of donor car (if used for parts)
List of all new/donors parts you changed