PAXTON SUPERCHARGER ?

Hijack in progress....

Back in the day the entire carb had to be in a presurized enclosure to use a paxton supercharger.(something about the pressure in the bores needing to be = to the pressure on the float bowls or something like that) Now I see flow through on carbs, why doesn't the positive pressure push the fuel back into the carb?

Hijack over.....

Thanks