ULTRA light - Aluminum construction for 43% weight savings ULTRA strong -Billet metering blocks & base plates ULTRA cool - Black anodized billet aluminum metering blocks and base plate ULTRA easy - Built in sight window for simple float adjustments ULTRA fast - High-performance fuel curves 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.
Features: Shiny with black anodized billet aluminum metering blocks/base plate for good looks and true gasket sealing
Ultra Street Avengers feature an optimized street calibration that works-out-of-the-box
Factory preset electric choke for easy startups
Vacuum secondaries allow use on a wide variety of vehicles. Quick Change vacuum housing cap allows you to tune for performance or fuel economy (springs included)
4 corner idle allows you to precisely control your idle system
Built in, clear fuel level sight glass for easy, no mess fuel level adjustments
Aluminum construction for a 43% weight savings
Ford A/T kickdown
Fuel line kit included so there are no unnecessary trips back to the parts store
Limited lifetime warranty - Guaranteed to be free from defects in material and workmanship for the life of the product!
100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Product Description: Carburetor, Model 4150, Ultra Street Avenger, 4-Barrel, 870 CFM, Square Bore, Vacuum Secondary, Elec Choke, Dual Inlet, Silver/Black Carburetor, Model 4150, Ultra Street Avenger, 4-Barrel, 870 CFM, Square Bore, Vacuum Secondary, Elec Choke, Dual Inlet, Silver/BlackPit Stop USA offers Holley 870 CFM Ultra Street Avenger Carburetor w/Black Billet 0-86870BK at low everyday prices. Be sure to check out all our products from Holley Performance Products including Holley Carburetors.