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Quick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VS

Quick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VS
Quick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VSQuick Fuel Technology HR-Series Carburetor 680CFM VS HR-680-VS
$1,082.99 ea
NEWARRIVING SOONEstimated Ship Date 07/24/2025 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/06/2025
Model: 4014734
STANDARD
DELIVERY
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The Hot Rod Series is a versatile performer designed for the most discerning street enthusiast. Featuring lightweight die-cast aluminum components, the HR-Series offer all the tunability you would expect from more expensive racing carburetors, including changeable bleeds, idle feed, power valve channel restrictions, and four-corner idle. Offered in either vacuum or mechanical secondary models, all Hot Rod Series carburetors feature electric chokes and dual metering blocks for added performance. Now available in a 450 cfm model for applications with small displacement engines. •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
This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.
Installation Notes:
This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.
About Quick Fuel Technology

“Innovators in fuel systems” is more than just a by-line. Quick Fuel Technology, since it’s inception in 1998, has grown exponentially culminating into the benchmark by which performance carburetors are measured.

The growth and success of Quick Fuel Technology is attributed to the strength and determination of its staff. All of the innovations you see on this website are the product of a team that is both experienced and involved in motorsports. We continue to develop new products so that we can stay on the forefront of innovation. Over the years, Quick Fuel Technology has made considerable strides to become a stand-alone carburetor manufacturer. This increase in efficiency and capability has allowed us to continuously upgrade our products while keeping the prices low.

In 2005, Quick Fuel Technology introduced its Super Street line of carburetors. This application-specific line catered to the enthusiast that wanted the best carburetor for the money while refusing to compromise street manners. Drawing from our race track experience we employed many features that were normally found on much pricier race carburetors, yet ours is generally half the price!

In 2009, Quick Fuel Technology launched the QFX-Series. This design incorporates significant race engineered main body upgrades. Each carburetor is individually hand-assembled and engine tested. There simply is not a better carburetor for your money.

2010 saw the introduction of two new carburetor series from QFT -

The RaceQ is the ultimate small flange drag race carburetor and packed with features that are sure to take your package to the next level. The Hot Rod series carburetor is our answer to the needs of street machines everywhere - from muscle cars to street rods, the HR Series is the most affordable and tunable carburetor on the market today.

Keeping true to our motto, we look to the future and constantly seek the next innovation. With our past experience and race-track development we continue our pursuit of horsepower and efficiency.

Downloads:

Download Name File Size
199r11667.pdf815.64KB

Videos:

Specifications:

Barrels 4
Billet Color Diecast-No Billet
Booster Down Leg
Booster Type Down Leg
Carburetor Use Street
CFM 680
Choke Electric
Circuit 2
Condition NEW
Emission Code 3
Finish Shiny
Fuel Gasoline
Fuel System Carbureted
High Speed Air Bleed 28
Idle Air Bleed Size 70
Marine Use No
Material Aluminum
Model HR-Series
Part Type Carburetor
Primary Main Jet 70
Primary Power Valve 65
Primary Pump Nozzle Size 31
Product Type Carburetor
Proposition 65 www.P65Warnings.ca.gov
Secondaries Vacuum
Secondary Main Jet 74
Supercharged Application No
Throttle Bore 1-11/16 inch
Warranty Limited 90 Day

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