Carb tuning help

So how come every Holley Dominator Carburetors are DP carbs and none are vacuum? Cause they make the most power being mechanical secondaries.

I will agree many street cars would be as fast with a vacuum carb--maybe faster even but race cars with 5,500 stall converters don't need a vacuum carb and every .1 second matters, maybe every .001 seconds. Vacuum secondaries don't open as fast as mechanical s and they don't open all the way super fast.

Go on Speed Talk dot com and post how vacuum carbs make as much power as DP and see what the pro racers who use dynos to test stuff have to say.