Which Carburetor???

Its time to put my engine together.... I thought I might as well spend the money and buy a new carb. I'm looking at Edelbrocks cause they look pretty cool ,no other reason....I'm also mounting it to a Edelbrock Performer intake.
Ok here it is I'm building a 340 .040 over w/20-222-3 Comp cam(.462 lift),4 Speed tranny. I have an electric fuel pump. anything else?
So Which Carburetor and why? CFM?:read2: