Right carb for a souped-up 360?

Even though Swingerdude is inquiring about a carb, it just seems like the wrong way to go with a tall gear and tight converter, even if it worked in another similar combo. A good gear would help more now while keeping the 600 a little longer. Then a bigger carb would work even better later on. Just my 2 cents on the progression of the build for maximum effect.

For reference, with tuning on my old 360 W-2 Challenger, I found a 650 DP and 780 vacuum to produce similar ET's. A 750 DP was about .10 faster. Gears can pick up more. Carb tuning should be done each time any changes are made.