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Holley Tunable Metering Block Carb Cutaway

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This cutaway shows the positioning of the five screw-in emulsion air bleeds for the main circuit of the carb. A tuning "bleed kit" (PN 36-322) contains 10 each of these six other bleed sizes: Blank/solid, 0.020-inch, 0.031-inch, 0.040-inch, 0.046-inch, and 0.052-inch. The blanks are for drilling custom hole sizes.
Holley Two-Barrel Carburetor Tunable Metering Block

 This cutaway shows the positioning of the five screw-in emulsion air bleeds for the main circuit of the carb. A tuning "bleed kit" (PN 36-322) contains 10 each of these six other bleed sizes: Blank/solid, 0.020-inch, 0.031-inch, 0.040-inch, 0.046-inch, and 0.052-inch. The blanks are for drilling custom hole sizes.  View Related Article

 

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