Right carb for a souped-up 360?

Hi guys,
I want to replace my edelbrock 600 vac. secondary with something more suitable for my engine. The 600 was never intended to stay on my 360, but it was what i had on the shelf.

2 carbs are on my "candidate list", the 750 Holley and the 650 Speed demon, both mech.secondary.

The engine:
360 0.30 overbore,
Heads: Edelbrock performer RPM 340 (63 cc)
Intake: Edelbrock performer RPM dual plane
Cam: Mopar performance 284' , 450 dura. , advanced 4 degrees.
Pistons: KB flattops
Valve gear: stock / hydr.

What would you put on a similar engine?

Regards