Holley 750cfm Dual Feed

Got a 750 carb off my 318, turns out it was too much carb. oops haha. So i'm looking to trade for anything from a 500 to a 650 edelbrock, holley, and carter.
What size carb do you really want? I've got Holley's or eddy's from 450cfm to 670cfm. but I need a 750 Holley preferably double pumper.