Annular Booster Venturi
The QFT annular booster venturi are CNC-machined from billet aluminum. These booster venturi are far superior to standard casting type. The new boosters have a much smoother and refined air entry and exit for increased flow, a much stronger vacuum signal, less turbulence which gives a much improved fuel emulsion for better combustion. Two separate booster inserts are available, one type for gasoline (red) and another type for alcohol (blue).