The Ultra Street Avenger carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061-T6 billet aluminum. They weigh in at approximately 5 lbs less than a comparable zinc carburetor. The new Ultra Street Avenger carburetors have the same great features as their aluminum counterparts such as a tumble polished aluminum finish; quick change vacuum secondaries for easy tuning to optimize performance or fuel economy; four vacuum ports for all necessary vacuum accessories; factory preset electric choke for easy startups; built-in fuel filters; and an included fuel line kit so there are no unnecessary trips back to the parts store. Ultra Street Avengers feature the same optimized street calibration as the zinc versions so you know they will run great on your vehicle. In addition, the Ultra Street Avenger now comes with anodized metering blocks and a base plate made from 6061-T6 billet aluminum and a built in, clear fuel level sight glass for easy, no mess fuel level adjustments. Don't trust your performance to just anyone, Holley is the only Modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60's.

• Ultra Street Avenger Has Optimized Calibration Works Out Of Box
• Factory Preset Electric Choke For Easy Startups
• Quick Change Vacuum Housing Cap To Tune For Performance/Fuel Econ
• 4 Corner Idle Allows You To Precisely Control Your Idle System
• Built In Clear Fuel Level Sight Glass For Fuel Level Adjustment
• Aluminum Construction For A 43% Weight Savings
• No Unnecessary Trips Back To The Parts Store
• Limited Lifetime Warranty
• 100% Wet Flow Tested By Holley Technicians
• Arrives Ready To Run

Additional Attributes:

• GTIN: 00090127718513
• Barrel: Four
• Billet Color: Black
• Booster Type: Down Leg
• Carburetor Type: 4150
• CFM: 870
• Choke: Electric
• Emission: Without EGR
• Finish: Shiny
• Flange: Square Bore
• Fuel Inlet: Dual
• Fuel Type: Gasoline
• Material: Aluminum
• Primary Main Jet: 78
• Primary Power Valve: 4.5
• Secondary Main Jet: 78
• Secondary Type: Vacuum
• Supercharged Application: No
• Throttle Bore: 1.750 in.
• Type: Automotive
• Usage: Street/Hi-Performance
• Vacuum Port Quantity: 1 timed (spark); 2 full; 1 PCV
• WARNING CA Proposition 65: Yes
• WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Extened Information:

• Emissions : Electronically Announced
• Life Cycle Status: Available Only While Supplies Last

Packaging:

• Quantity of Each:
• Package UOM:
• Dimension: 11.0000 x 12.5000 x 7.3800 inches

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