Carburetor Metering Block Race-Oriented Calibration Holley 4150/4160 Models Proform Engine Oil Pump Primer and Changeable Idle Feed Restriction

and Changeable Idle Feed Restriction and are Manufactured in the U

Cut cylinder head assembly and disassembly time in half with the Proform pneumatic valve spring compressor

Timing Cover With Pointer

Will Not Fit Center Bolt Valve Cover Applications

Made From High-Quality Heat Treated Steel

Carburetor Metering Block Race-Oriented Calibration Holley 4150/4160 Models Proform Engine Oil Pump Primer and Changeable Idle Feed RestrictionStill using 1950 technology? Upgrade your carburetor with PROFORMs 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. Sold as one kit. Product Details: Engine Carburetor Metering Block Race Oriented Calibration Model Fits Holley 4150 And 4160