I am in the process of building a 455 for my GS350 and need 1970 455 power steering brackets. Thanks,
For the pump brackets, if you can't find used then you can get them as reproductions from The Parts Place. We bought some once and they worked fine for a '70 455. https://www.ebay.com/itm/69-72-Skylark-Power-Steering-Pump-Mounting-Brackets-2-Piece-Set/350586031070?hash=item51a08e4bde:g:-sYAAOSwQupXVhF4&vxp=mtr