I used Downey kit, Downey Manual and AA manuals when I swapped in 1970 350.
There are some pics in ---> https://forum.ih8mud.com/40-55-series-tech/448066-sbc-swap-manual-steering-2.html
There are some pics in ---> https://forum.ih8mud.com/40-55-series-tech/448066-sbc-swap-manual-steering-2.html