carburetor replacement need advice

[bryce6horse]

i am tired of my quadrajet piece of crap! i bought what i thought was to be a complete gone through rebuilt carb. it has been on the truck for about a month and it floods, overloads and runs like crap until i get it on the highway and settles down and runs & idles smooth after that. on the receipt it has a 5yr warranty and when i called the number for the shop they were no longer in business. the cost of the one i bought was $210. i called mister carburetor in cedar hill, tx and they want $235 to go through it and completely redo it again. i would rather just buy a brand new one. what is the best 600 cfm carburetor out there for a stock 350 with the stock intake manifold?