Carb for Cam

Ok the Car is Running But Ruff. and Nasty. someone was telling me that my CARb is not Good Enough. for the Cam i have its a .477.480 lift. its a COMP Cam extreme Energy. im running a quad Carb. what would you guys Think would be Good. i have a 650 im Rebuilding and Fixing the Fuel Bowl or do i need to go 750 let me know thanx!

i dont see why a 600 cfm edelbrock isnt enough fuel
i have used it on a 327 and a 350 for 19 years my
cam is milder than yours but 600 cfm for a sb chevy
is usually plenty**)