Front End Problems

My 67 Dart was modified before I bought it. The front end steering is unstable, wandering all over the road, with the front end rising and dropping. The car was originally a 6 cylinder car. It now has a 340 motor. It also now has 4 on 4.5" studded brakes on all fours with 11" discs in the front and 10" drums in the back on an 8 3/4 rear. I just changed the torsion bars to .920". Something is seriously wrong. The adjuster arms between the lower control arms were rubbing on the inside of the frame. My guess is the K frame was changed to the small block type. I'm not sure what steering knuckles or other parts were swapped in for the disc brake conversion. Any help with what parts can be recognized would be greatful. There are 5 pics. Thanks.

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