67 Belvedere II w/stock 318

Hey Everyone.. Just picked up a 67 Belvedere II with the stock 318. I don't want to do anything crazy to it just yet. Looking to get a edelbrock carb and was leaning towards the 1406 at 600cfm. I just wanted to get everyone's opinions on what carb I should get for a mostly stock 318 and still get some performance. I have headers and full exhaust on the way as well. Sorry for the newbie questions...

Thanks
Author: s13saru