Modified flow carburetors are improved in airflow and metering areas to increase horsepower and torque on modified engines which cannot use the full potential of a maximum flow carburetor because of restricted head or intake sizes, lower working RPM range, smaller cubic inch engines and cams or compression which are not all-out. Where rules allow modification, bores are slightly enlarged to match up airflow. Features include: balanced booster draw, milled chokehorn, optional stainless vent tubes, matched and polished venturis, reworked metering and stainless steel buttonhead butterfly screws.
