I have not done it, but wouldn't the simplest route be a small spacer to get the cable driven TB of your choice to bolt to the early truck manifold?
There was a guy on here use a car manifold with truck front, took some grinding was all.
I think you might have missed that part in my long azz post lol.
The adapter plate will not work with early truck intakes...that would definitely be the easiest, and was my actual plan. However, it apparently does not fit properly and thus a cable driven throttle body does not work properly.
The car manifold was a 5.7 or 6.1 manifold?
