Side pivot float, not good for a road course, or even street use under heavy braking/cornering. That's why the Comp cars ran the center pivot single four which are to long to run in a dual configuration.
How do you deal with it? Set the float on the low side, heel/toe the brake/throttle when you need to, try to keep it from stalling if you screwed up the heel/toe, avoid cone racing. Learn to deal with it...
At the end of the straight coming down from about 130 mph into a hair pin corner was the biggest challenge on the road course here. I had to really pay attention with the braking, gear selection, getting back on the throttle "just right" or it would flood big time! It actually did OK in the other corners because your back on the throttle quick enough.
I'm running twin 600 Holleys vacuum secondary, they work OK. This is the THIRD set of carbs I've had on it, every set had the same problem under hard braking/cornering, fuel slosh. IF I was going to do some serious tracking I'd go with a center pivot. But I'm mostly street and the dual fours look cool, so I live with it.