This carburetor has been the sanctioning bodies’ answer to slowing cars down and creating an equal playing field.  Well, they got it half right.  The power is significantly reduced by the restricted airflow; but the performance difference between an “out of the box” carburetor and one that has been properly modified eliminates the equal playing field.

Whenever a carburetor is sized improperly to the engine like this one is, there are a variety of problems that arise.  The air/fuel circuitry was designed for a low air speed/horsepower application.  When this design is applied to a high air speed situation, it produces a rich, poorly emulsified fuel mixture.  VDL Fuel Systems has done extensive dyno and track testing to recalibrate the air/fuel circuitry, accelerator pump circuit, and idle circuit to produce optimum torque, horsepower, and drivability.

Airflow is of the essence with a restricted carburetor.  VDL Fuel Systems takes every part of this carburetor and maximizes the potential airflow while still operating within the tech parameters.  After the main body, boosters, base plate, and throttle are machined to the minimum/maximum sizing, they are vibratory polished and recoated.

Assembly is done to tolerances unobtainable in high volume production.  Boosters are installed within .001’’ on height, twist, and pitch.  The base plate is matched to the main body.  All gaskets are properly matched to the main body to prevent overhang.  And finally, the throttle plates are adjusted for optimum position angle on the flow bench.  VDL Fuel Systems produces a custom-built, fully optimized carburetor built to your specifications and engine application – not just another “out of the box” carburetor.