First hand experience on my 71 Bee / Street car
#s 383 Mag / Balanced / .030 Over Forged / Old school Mopar 284-484 cam / 18 initial - 38 total / 3:91 Gears / Blah Blah

The 383 Holley Street Dominator off idle or launching at say 2500 rpms is a dog - That intake does not come alive until at least 3500/4000 Rpms and anything above that it flat out performs

However

The Edelbrock Performer RPM / Even just the Edelbrock Performer is just a much better intake on a mildly built 383 Mag Street Car

Like others have stated - On the 383s the Street Dominator just doesnt have the low end torque and it really shows in that Hot Rod Article and from my experience testing all three intakes on the street launching / off idle etc.

Scott