67 Barracuda Big Block K frame keep it or change it ??

Why would you want to ruin a big block Barracuda? Buy a small block car and cut it up all you want. I will buy the 67 k-frame from you if it comes to that point. If you are modifying it for cornering change the whole suspension. No reason you can't put a power steering box on your present k-frame if that's what you want. Plenty of people out there who would swap you the manual box and column for it...
Nothing being cut up, just looking at bolt on parts.