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. Three different anodized color options (Red, Blue, Black, or Hardcore Gray) allow for a personalized look while maintaining the ultra-high strength and durability you get from billet. 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. The clean, polished look coupled with Red, Blue, Black and Hardcore Gray metering blocks and throttle body will certainly set your ride apart whether you are at the show or track. 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.

• Feature An Optimized Street Calibration That Works Out-Of-The-Box
• Factory Preset Electric Choke For Easy Startups
• Vacuum Secondaries Allows Use On Wide Variety Of Vehicles
• 4 Corner Idle Allows To Precisely Control Your Idle System
• Built In Clear Fuel Level Sight Glass For Easy No Mess Level Adj.
• Aluminum Construction For A 43% Weight Savings
• Fuel Line Kit Incl. So No Unnecessary Trips Back To Parts Store
• 100% Wet-Flow Tested By Holley Technicians To Assure Ready To Run
• Limited Lifetime Warranty

Additional Attributes:

• GTIN: 00090127048085
• Billet Color: Black
• Booster Type: Straight
• Carburetor Type: 4150
• CFM: 570
• Choke: Electric
• Emission: Without EGR
• Finish: Hard Core Gray
• Flange: Square Bore
• Fuel Inlet: Dual
• Fuel Type: Gasoline
• Material: Aluminum
• Primary Main Jet: 64
• Primary Power Valve: 6.5
• Secondary Main Jet: 72
• Secondary Type: Vacuum
• Supercharged Application: No
• Throttle Bore: 1.562 in.
• Type: Universal
• Usage: Racing
• 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
• Barrel: Four

Packaging:

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

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