My new 408 build , but what size carb?

Wow thanks guys. I just got back from a local car show and my parts guy ( who's also a best friend) thinks the 750 will do, but I disagree and i see you all would too. I'm looking to squeeze as much as I can out of this combo. Propbally gonna port the heads this week too.
So it's between 850 or 950... Now that I need a new carb brand name is another option. Holley, proform or QuickFuel. I've personally only used holleys but would like to hear your experiences with others.

I shouldn't get off topic but Any ideas what ETs I should expect with this combo while spraying a 100shot.
It has drag radials 315s. And caltracs
My dream is to make 10s. I'd be happy with that.

And for those who noticed...I know. It needs a cage/roll bar