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 , Crankshaft Turning Nut and Bolt , Fits Chevy Big Block Crankshafts

    Proform , Crankshaft Turning Nut and Bolt , Fits Chevy Big Block Crankshafts

    $66.42

    Proform , 100 AMP Alternator Chrome Finish, 1-Wire, GM 10 SI; w/ Internal Regulator, V-Pully, & Ext. Fan

    Proform , 100 AMP Alternator Chrome Finish, 1-Wire, GM 10 SI; w/ Internal Regulator, V-Pully, & Ext. Fan

    $309.65

    Proform , Super-Street Chevy Aluminum Roller Rockers, 1.6 Ratio; 3/8" Stud

    Proform , Super-Street Chevy Aluminum Roller Rockers, 1.6 Ratio; 3/8" Stud

    $461.67

    Proform , CS130 Alternator, 160 AMP Chrome Finish, 1-Wire, GM CS130 Style; w/ Internal Regulator, V-Pully, & Ext. Fan

    Proform , CS130 Alternator, 160 AMP Chrome Finish, 1-Wire, GM CS130 Style; w/ Internal Regulator, V-Pully, & Ext. Fan

    $311.95

    Proform , Wedge-Locking Collector Bolts, Grade 8, Black Oxide Finish; 3/8"-16 Thread Diameter; 1" Long

    Proform , Wedge-Locking Collector Bolts, Grade 8, Black Oxide Finish; 3/8"-16 Thread Diameter; 1" Long

    $52.39

    Proform , Tundra Series Oil & Transmission Cooler, Universal Stacked Plate Design - 25 Row Model

    Proform , Tundra Series Oil & Transmission Cooler, Universal Stacked Plate Design - 25 Row Model

    $360.14