Fuel Blowing Out Carb Vent Tubes Under Heavy Throttle: Expert Opinions Please

Sounds like fuel level is to high. We use to use a piece of 5/16" hose run from one vent to the other with a slice taken out of the topfor air. Or there is this.
Holley Carburetor BOWL VENT TUBE TRUCK AVENGER OFF ROAD RACE DEMO DERBY A23 | eBay