Turbo six on a Budget

Yup. 1:1 6+9=15. Fuel bowls are pressurized on a blow through only under boost..fuel can get in at idle just like a regular carb. That's why they tell you to replace the brass floats with nitrophyl so they dont crush under (bowl) pressure: Check out a Paxton carb box on a 57 Ford or Studebaker Avanti, completely enclosed AFB including bowls....
"..Replace your old plastic or brass floats with the new Nitrophyl floats, making sure to assemble them so that when finished, they look like this. [pic] The Nitrophyl floats are solid and will not crush or crack under boost..."
Blowthrough Carb How-To