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Holley EFI Carb Hat


PART# 120-230

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Introducing carb hats from Holley EFI. These new carb hats are the perfect solution for any blow through installation. The Holley EFI carb hats contoured designed promotes optimal airflow, while providing excellent hood clearance for most applications with a 5-1/8" air cleaner flange. These hats feature a 1/8th NPT reference port that can be used as a convenient hookup for boost gauges or carbureted fuel pressure regulators . The inlet is designed for a 3.5" silicone coupler, with a sealing lip to ensure a leak free installation.


  • Hi-Flow Contour design for optimal air distribution
  • 3.97” Tall for excellent hood clearance
  • 1/8NPT Reference port for boost gauges or carbureted fuel pressure regulators
  • Fits all applications with a 5-1/8th” air cleaner flange, such as Sniper EFI – Terminator Stealth – 4150 Flange Carburetors and 2300 Flange Carburetors
  • The air cleaner stud entry can be drilled to 5/16 for installations with larger air cleaner studs
  • Available in Raw Aluminum and Black Powder Coat finishes
  • Air cleaner gasket, stud, washer, nut and 1/8NPT plug – included


BrandHolley EFI
Emission Code4
Filter DiameterN/A
Filter HeightN/A
Filter TypeN/A
Gasket IncludedYes
MaterialCast Aluminum
Product TypeCarb Hat
Part Number120-230



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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