You'll need an adapter plate to bolt to your intake. I used a Mister Gasket from Advance Auto. Part No. 1937. $20 or so.
A way to adapt your air cleaner, the Jeeps is 2 5/8" (?) and the MC 2100 is a 5 1/2" (?). I just bought a 9" round air cleaner assembly and made life easy on myself. Another $20 or so at Advance.
A new throttle cable. One from a CJ with a 304 will snap right in to your firewall, and be the exact length. Some make a bracket at the carb to hold the cable, some don't. I didn't, and see no problems with it. Another $20 or so at advance.
78 CJ7.. 258.. TH400/Dana18.. SOA/stock YJ springs.. 35" General Grabbers.. Waggy 44s.. 4.88 gears...Spartan/Lockright...Fiberglass front to rear