Carb and Manifold Change

You're dealing with the same problems others have had with this swap. Very few intake/carb swaps are direct bolt on deals. Almost none that I can think of. The only one that comes to mind isn't a 2 bbl to 4 bbl swap, but replacing the Autolite 2100 with a Holley 2300 series 2 bbl. Only thing there is moving the fuel line a little. You'll probably need a longer throttle rod, a 4 bbl kickdown rod ( but even then I don't know how it will mate to an Edelbrock carb) Cut your fuel line back to allow room for an inline filter, and finally go get a couple feet of different size vacuum hose and replace/reroute yours with the new stuff. There is no kit, just takes a few trips to the local parts house to get what you need.