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Vehicle Info NeededBillet Metering Block Gasoline
Ships on 09/08/2026
Lowest Price Guarantee- Billet Metering Block
- Gasoline
- Fits 4500 Series Carburetors
- 3-Circuit w/Adjustable Metering
- Five Stage Emulsion
Features 5 emulsion holes
Billet Metering Block
Quick Fuel Billet metering blocks offer the highest quality metering performance available in the metering block. Precision CNC machined from aluminum billet, porosity causing cross well bleeding is virtually eliminated. All billet metering blocks have screw-in idle feed restrictions. Standard calibration metering blocks have race proven emulsion calibration pre-drilled directly into the metering block. Adjustable metering blocks have screw-in emulsion bleeds that can be altered for ultimate fuel curve tailoring.
Billet Secondary Metering Block
Use this metering block to convert from a metering plate to metering block. This kit enables you to convert your single or dual inlet carburetor from a secondary metering plate to a secondary metering block. Kit includes a longer transfer tube and longer fuel bowl screws. Features adjustable idle feed restriction.
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Billet Metering Block Conversion Kit
For all Holley Double Pumper carburetors. Allows you to upgrade to billet metering blocks with a more aggressive calibration essential with engine modifications. Have tunable idle feed restrictions. Will also facilitate a conversion to four corner idle (some additional modifications to carburetor required).
This kit will replace the original metering blocks with a more aggressive ''race oriented'' calibration. Adjustable idle feed restriction enables you to fine tune the idle, not possible with press in restriction carburetors.
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