That is actually a Ford intake. I believe it was developed by the Shelby company. They had 5 different tops for them that I know of. I know of the single 2 barrel, single 4, single 4 Dominator, 4 singles, and 3 dueces. Would be really cool if you could get the other top plates too.
I'm gonna guess Bud Moore (though I agree with Mike about the Ford thing too- so I don't really know...). Looks like an intake for the dirt trackers, with the 2v top and removable top plate. Lots of odd parts out there for 2v limited series like dirt.
A big time conversation piece, to be sure.
I'd love to have it, just for the versatility. I could play with all kinds of carburetion setups on the monster mile with one of those and close my stock hood.
A 2v clevo with a 500cfm Holley makes very good midrange and lots more torque than you'd expect. You can build a serious beast under that intake.
It is not the Bud Moore intake. The Bud Moore was an open box, set up kinda like a self contained cross ram. It had a removeable top as well, but its top was as wide and long as the rest of the intake.