The Holley 4010/4011 is a great carburetor.
I ran a 600cfm VS on my 390 for some years. It did well. The small size and annular boosters made midrange response very snappy.

As noted above, it's Holley's version of the Autolite and it has been remade as the Summit brand carb.

Benefits:
-It takes Holley jets unlike the Autolites
-Unlike the Autolite, you can find them in 750cfm sizes and as double pumpers
-Only thing that can leak is the accelerator pump, everything else is above the fuel line
-Annular boosters seems to work well on stockish engines

Cons:
-A little hard to find a rebuild kit, There are some on ebay for $40, might want to snag one if you intend to keep the carb
-I've seen many with broken mounting ears, especially where the accelerator pump bolt goes through the mounting ear
-I think Holley made these out of really soft metal, if rebuilding it be gentle, and keep a couple small taps on hand

 

This is a dead thread from 2009. Newbie dug it up in post 14. OP last posted 12/25/2011. Shovel the dirt back in there....

 

Gee, I wonder if Ryan still has that truck...