All depends on what you want. I like taking them to MW size and then they'll go 330cfm pretty easily. Give us more info on the engine and intended purpose.
OOTB they flow pretty poor by today's standards.

the short block is a 499 low deck 12 to one compression cam motion roller cam 461/440 lobe lift 273/280 duration I'll be using 1.58 rockers.
What intake do you use when going to max wedge size