Quote Originally Posted by swet158 View Post
Do I have to block the hole on the side of the manifold? Looking at the carb, that hole looks like a vacuum port.
If you're asking about a threaded hole pointing towards the driver's side directly below the carb, there should have been a vacuum barb "tree" screwed into that with 5 barbs on it. You can just plug that, but it's a weird BSPT 1/8"-28 threading; looks like this plug should do the trick:

https://www.ebay.com/itm/122857847756

In this case for distributor vac advance you'd just use "ported" vacuum from the carb. The DFEV carb with that K614 kit should have a suitable barb low on the choke side, just above the idle mixture screw.

Quote Originally Posted by swet158 View Post
What about the other electrical connections on the control box? Do I need to do something with them?
Just disconnect the wiring terminal blocks connecting to that box and the carb. You can just leave the disconnected terminal blocks as-is, maybe tuck or zip-tie them out of the way for tidiness if you wish.