power to manual steering conversion help/suggestions?

i removed my power steering from my 72 duster as i had a manual box andcoupler needed for the swap. i also replaced the pitman arm and everything else felt tight...
i took k it out for a ride and jesus... it was all over the road and steered harder than i can remember any of my other manual steering vehicles.. the front end was gone through previously with all new parts, ball joints, bushings tie rods, pitman and idler...
I thought this was a pretty straight forward swap.i would expect an alignment to increase the caster for steering ease but dont know if it would help.the box supposedly was a low mile unit
that came from a 340 duster as well..and it felt tight?. have i missed something?