Metering Block - Race-Oriented Calibration - Primary - Gaskets Included - Aluminum - Purple Anodized - Holley 4150 Carburetors - Each

Vehicle Compatibility and Return Conditions.

This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.

Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.

Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Metering Block, Race Calibration, Primary, Billet Aluminum, Purple Anodized, Holley 4150 Series, Each

Upgrade your carburetor with Proform's race calibration billet metering blocks. The metering blocks are CNC-machined from solid billet aluminum for added strength and durability. Additional features include changeable idle feed restrictions, four emulsions for more aggressive tuning, and installation gaskets.