1. The manifold vacuum line for the wiper mechanical motor was not on the car when I purchased it. Where is the vacuum line attached to the manifold (intake??) What type of fitting is needed for connection.
The intake manifold has a compression fitting with short piece of copper tubing. A rubber hose leads to another piece of tubing on the other side of the firewall. Another piece of hose connects that to the tubing running up the A pillar to a final piece of hose to the wiper motor.
2. Is it possible to retain the original 31 transmission but make a modification to make it a synchronized gear transmission like the 32. What is involved? What parts need to be replaced or modified? What source should I use to perform the work (Kansas City metropolitan area)?
I don't know if a practical way to modify the transmission to add synchronizers. I am sure it can be done but suspect it would be VERY expensive. Once you get used to the "crash" box transmission and if you use 600W lubricant grindless shifts can be made. That is both upshifts and downshifts.