My friend had cliffords on his slant six with PS in a 74 valiant, clears well, i i think your motor mount is too low/worn out, you have the later k member with spool type motor mounts you can loosen the mount on driver side use a block of wood and jack to lift the motor up once you loosen the motor mount, or lift the motor with a cherry picker from the two bolts on the then tighten up the motor mounts to the new adjusted height