Big block A body spool mount K member?

I've never seen a K-frame like that. The anti-roll bar on the factory /6 and SB cars goes through the K-frame not around the front. I'd be curious to know if what you have was made by Mopar Performance or a third party.

There's something unusual about the steering linkage, too. I won't be able to say until I climb under my car.

I like the 68 Fish, BTW. Great find.