Carb selection help

Yes, though a 750 could be used and used well. And, a lot depends on what your doing, expecting out of the car as well as a ton of missing info about the car like;

Cam size
converter stall
gear ratio
tire size
car weight

(Headers? exhaustsize, etc..... )
Cam duration 278/288 lift 421/444
2400 stall
Shitty 2.90's at the moment but will be swapping the rear end and going with 3.73
Weight is around 3200
Long tubes 1 5/8 with 2.5in put the back