Edelbrock LD4B
To clarify a little further what I posted.
* Both Action Plus intakes are matched to the 273/318 ports. See thomsclan link for port cast dimensions of various intakes.
* I mocked up installing an 8007 on my '67 Barracuda, that's why I knew how tall it was.
* I mentioned the LD340 only because I don't have a hieght measurement for the LD4B.
* Hot Rod's 1968 340 dyno test used an LD4B. If anyone is really curious, I can post a graph I made of the results - could become a sidetrack. lol.
Rob et al covered the major differences. There also seem to be minor differences under the same name depending on when they were made. Some of the LDs came with Chrysler P part numbers cast in, different ways some accomodated Chysler type choke heaters (or not), and probably a few more.