What carb. should I buy?

I have a 67 Dart pro street car that I run at Test/Tune opportunities. Otherwise it is street driven around the area. Engine is 383 bored and stroked to 496. Forged pistons, Trick Flow 240 heads, Edelbrock Performer RPM intake, .564/295 Comp Cam. Currently I have a Holley 850 double pumper.
What brand, size, model carb would you guys recommend for this combo?

Car has 4.10 rear now. 4.56 is in hand and going in this winter.
Tires are 31 tall.