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Billet Metering Block Kit QFX 3-Circ E85

Single Metering Block Green- 4500

PART# 34-177QFT

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$136.00   Suggested Retail
$121.95   Holleydays Price
Estimated shipping date: 12/31/2020
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Billet Metering Block Kit E85 - Fully Adjustable- Each 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 world street & race carburetors. Simply add your jets and power valve to complete the installation. Includes the following items. Addional carburetor modifications will be required to run E85.


  • Adjustable idle feed restrictions - 0.043"
  • 4 adjustable emulsion channels
  • Non-stick gaskets
  • Exclusive QFT positive retaining vent baffle
  • Stainless steel idle mixture screws with nylon seals.
  • Detailed installation instruction sheet
  • (Requires QFT 6-32 thread bleeds for modification)
  • Each


BrandQuick Fuel
Emission Code5
Product TypeMetering Block Kit
WarrantyLimited 90 Day
Part Number34-177QFT



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Additional carburetor modifications will be required to run E85. (Requires QFT 6-32 thread bleeds for modification)

Warranty Information

Limited 90 Day: See Details
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         X  Holleydays 2020 20% off and DD
         X  Holleydays 2020 20% off and DD