Features:

• •Built with the same dimensions and specs of the original counterparts and guidelines set by the NHRA rulebook
• •Can be used in place of hard to find and expensive Holley O.E. carbs that are competition legal per class
• •All models feature a fully adjustable electric choke for easy starting
• •Dual metering blocks w/4-corner idle for smooth and efficient idle quality
• •Screw-in air bleeds and idle feed restrictions for quick and unsurpassed tuning capability
• •Dual inlet fuel bowls with sight glass windows on both fuel bowls for safe and easy float adjustment
• •Universal throttle lever with sealed throttle shafts for years of smooth operation
• •Tuneable secondary opening rate
• •Tumble polished for long lasting shine

About Quick Fuel Technology

Looking for carburetors and carburetor parts for drag racing and street rods? Shop on Holley.com, the official site for QFT products.

• Vacuum Secondary Diaphragm

  Vacuum Secondary Diaphragm Carb No R1849-50/R3310/R4452-1/R4548/R6520/R6619/R6909-19-79-89/R7002-04-05-06-09-10-53-1/R7154/R7351-97/R7855

  Part# 135-4

  $17.51

  Qty: 

  Add To Cart
• Rebuild Kit NS (4160 V.S.)

  Rebuild Kit

  Part# 3-200QFT

  $49.37

  Qty: 

  Add To Cart

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

• 1965 and older U.S. manufactured California Certified vehicles
• 1967 and older U.S. manufactured Federally Certified vehicles
• 1967 and older Foreign manufactured vehicle

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

The following vehicles are considered Emissions Controlled Vehicles:

• 1966 and newer U.S. manufactured California Certified vehicles
• 1968 and newer U.S. manufactured Federally Certified vehicles
• 1968 and newer Foreign manufactured vehicle