k-frame holes dont line up

Before you attempt to straighten the frame, are you sure that the new K-frame is straight?

I went through a similar situation on a 74 Dart Sport. I didn't know the car had been wrecked until I attempted to replace the cracked k-frame. Fortunately, the car the donor k-frame was from had never been wrecked so I knew the frame was bent when the holes would not line up.