4412 Modified Metering Block - Used when rules prohibit billet or HP® style blocks. This block has been modified internally to increase the useable RPM range of the carburetor.
Billet Metering Block Kit E85 - Fully Adjustable Our billet aluminum metering blocks are machined to very strict tolerances then anodized for protection and good looks. CNC cut from premium aluminum and filled with precision parts, these blocks provide the ultimate platform for your performance carburetor. Fully adjustable calibration for out of box E85 performance - designed to fit most real w..
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