just because a car is driven on the street doesn't mean it is a street car.

Any cam will act milder the bigger the engine it is in. More compression helps. Deeper gears help. Stick is easier than an auto. More stall helps. lighter weight helps. ALL of those move it farther from street till you get to "not a street car".

Since you neglected to mention any details about the vehicle, engine, trans, gears etc you cannot expect an answer that is relevant.