Tim,
Thanks for the info on the numbers. You are obviously more skilled than me at interpreting these.
In what year truck will you be installing this engine?
This is the engine that my 54 Hydramatic-equipped 3100 came with.
Use the truck vacuum advance unit for that year. Or, use at least the mounting bracket used for that year truck - the angle of the bracket may be dependent on the location of the front motor mount.
Wouldn't the configuration of the distributor and vacuum advance be completely determined by the engine itself and not be affected by the vehicle in which it is installed?