700-750 cfm double pumper wanted , will trade 600cfm summit and 450 cfm edelbrock AVS2

Hey everybody hows it going? I'm looking to trade two good Carbs just undersized for what I need. 1 is a Summit 650 cfm carb double pumper and the other is a Edelbrock 450 cfm AVS2 carb both electric choke both work I need about 750 cfm electric choke double pumper please.

Thank you