Still using 1950's technology? Upgrade your carburetor with PROFORM's new race-oriented billet metering blocks. Each unit is CNC machined from solid billet aluminum for added strength and durability and features changeable idle feed restriction, 4 emulsions for more aggressive tuning, and additional racing application upgrades.

Features:
Race-Oriented Calibration Model
  • Fits Holley® 4150 and 4160 Models
  • Black Anodized Finish
  • Made from Billet Aluminum
  • Sold Individually
  • More From This Category

    Proform , Super-Light Racing Aluminum Air Cleaner Base, Clear Anodized; Deep-Recessed Base; No Logos; 14" Dia.

    Proform , Super-Light Racing Aluminum Air Cleaner Base, Clear Anodized; Deep-Recessed Base; No Logos; 14" Dia.

    $71.21

    View
    Proform , Chevy Small Block Rockers; Steel, 1.5 Ratio; 3/8" Stud; "C" = Clamshell Packaging

    Proform , Chevy Small Block Rockers; Steel, 1.5 Ratio; 3/8" Stud; "C" = Clamshell Packaging

    $186.36

    View
    Proform , Radiator System, Slim-Fit, Inlet on Passenger Side, Outlet on Driver Side, 19" Core; Single Pass; Manual Transmission

    Proform , Radiator System, Slim-Fit, Inlet on Passenger Side, Outlet on Driver Side, 19" Core; Single Pass; Manual Transmission

    $1,403.88

    View
    Proform , Radiator System, 1-2-3, Inlet on Passenger Side, Outlet on Driver Side, 26" Core; Single Pass; Manual Transmission

    Proform , Radiator System, 1-2-3, Inlet on Passenger Side, Outlet on Driver Side, 26" Core; Single Pass; Manual Transmission

    $840.00

    View