In the 1980's BLP was the first to introduce a fully machined billet metering block for Holley® carburetors. Since that time BLP has expanded the unassembled or assembled billet aluminum metering blocks for both gas applications. Metering blocks can are ready to add your components (jets, power valve, etc.) Features are:

Available in Black Bright Dip Anodize coating.
All fuel circuits are fixed.
Power valve channels are lowered.
Gasoline Billet Metering Blocks

51241B-5R-FE
5 hole emulsion configuration.
Black Bright Dip Anodized.
2 circuit with standard 1/4 x 32 Holley® jet thread.
jets and components sold separately.

51241B-3R-FE
3 hole emulsion configuration.
Black Bright Dip Anodized.
2 circuit with standard 1/4 x 32 Holley® jet thread.
jets and components sold separately.

You can purchase yours here: