I did my 54 C-series on a dak. It was a lot more hands on and involved than just dropping the body on!
You can read the whole saga on the flathead dodge site.
https://p15-d24.com/topic/47345-512-cid-c-series-on-dakota-chassis-build-thread/Poorboy helped me out a lot in the beginning too. .
I was posting there weekly or more for over a year- every system adapted & fabricated sometimes twice when an idea didn’t work!
Feel free to PM me any questions or to get my phone # here if I can help I’d be happy to.
Radar