Pressure Differential
Teh dome riases based on pressure differential. As long as the stock airbox venting is retained, the operating pressure (ambient) should not affect the operation of the dome. This includes pressurizing the float bowl through the ventline also, so the static pressure in the float chamber was correct.
If you didn't do that, the fuel level may be too low, and cause metering provblems.
I mean, at 22" of water boost, that's like 11" of mercury, and that equates to about 5PSI! In such a situation, theoretically you would have to utilize a pressure-biases fuel pressure regulator to keep fuel pressure above the incoming air pressure.
As long as your vents are intact, you should be O.K.
Bolts not required. Besides, you CAN buy different springs to change the opening rate, but that would LEANOUT the mixture under load, instead of enrichenit...