Horsepower limit for out of the box Edelbrock RPM heads

Do these heads that flow 300+ work worth a crap in the lower rpm ranges, say in a street or road course car? For my use cases, a nice flat torque curve from 2500 rpm on up is more desirable than a few more HP all on the top end. Obviously cam selection plays here but does a 370 cfm Victor or Indy 360-1 have good port velocity for responsiveness?