If you’re going with the big block routing on a small block car, you’ll want this bracket. The two holes you’ll need to drill out are outlined on the inside of the lower control arm mount. I’ll attach a picture. The left hole needs to be the proper size for the self-tapping bolt that comes with the bracket, and the right is just for an indexing tab to go into.
One optional thing I also suggest is to change to the 1969 power steering pump reservoir, which points the return line down instead of straight back. This allows to you route it more cleanly, away from the exhaust manifold. See my post on the subject here.
Hi John, can you elaborate on this special clamp? Not sure if I’ve seen such a thing I have a vested interest in this because those pictures are of my car 
Ever since doing this I was questioning the fitment of those hoses.