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. Dont 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 60s.
Specifications:
| Description_ASC |
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. |
| Description_DEF |
Carburetor |
| Description_DES |
770 CFM Ultra Street Avenger Carburetor |
| Description_FAB |
Hard Core Gray (TM) w/ black anodized billet aluminum metering blocks/base plate. Casting is hard coat anodized for ultimate corrosion resistance |
| Description_FAB |
Ultra Street Avengers feature an optimized street calibration that works-out-of-the-box |
| Description_FAB |
Factory preset electric choke for easy startups |
| Description_FAB |
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) |
| Description_FAB |
4 corner idle allows you to precisely control your idle system |
| Description_FAB |
Built in, clear fuel level sight glass for easy, no mess fuel level adjustments |
| Description_FAB |
Aluminum construction for a 43% weight savings |
| Description_FAB |
Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required. |
| Description_FAB |
Fuel line kit included so there are no unnecessary trips back to the parts store |
| Description_FAB |
Limited lifetime warranty - Guaranteed to be free from defects in material and workmanship for the life of the product! |
| Description_FAB |
100% wet-flow tested by Holley technicians to assure it arrives ready to run! |
| Description_INV |
770 ULTRA STREET AVENGER - HARD BLACK |
| Description_EXT |
Ultra Street Avenger Carburetor; 4 bbl; 770 cfm; Model 4150; Vacuum Secondary; Electric Choke; Gas; Dual Fuel Inlet; Aluminum; Gray Metering Block/Base Plate w/Gold Hardware; |
| Description_MKT |
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. Dont 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 60s. |
| Description_SHO |
Carburetor |
| Finish |
Hard Core Gray |
| Booster |
Down Leg |
| Emission Code |
3 |
| Choke |
Electric |
| Booster Type |
Down Leg |
| Fuel Type |
Gasoline |
| Fuel |
Gasoline |
| Primary Power Valve |
6.5 |
| Usage |
Street/Hi-Performance |
| Barrel |
Four |
| Material |
Aluminum |
| Barrels |
4 |
| Marine Use |
No |
| Primary Pump Nozzle Size |
31 |
| Throttle Bore |
1.6875 inch |
| Type |
Automotive |
| WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Fuel Inlet |
Dual |
| Billet Color |
Black |
| Emission |
Without EGR |
| Flange |
Square Bore |
| Primary Main Jet |
72 |
| Secondary Type |
Vacuum |
| Carburetor Type |
4150 |
| Brand |
Holley |
| Condition |
New |
| Vacuum Ports |
1 timed (spark) port, 2 full, and 1 PCV port |
| Warning |
California Proposition 65 |
| Secondary Main Jet |
84 |
| Supercharged Application |
No |
| CFM |
770 |
| Vacuum Port Quantity |
1 timed (spark); 2 full; 1 PCV |
| WARNING CA Proposition 65 |
Yes |
| Carburetor Use |
Street |
| Model |
4150 |
| Product Type |
Carburetor |
| Secondaries |
Vacuum |
| Warranty |
Limited Lifetime Warranty |
| Length |
8.0000 |
| Width |
11.0000 |
| Height |
13.0000 |
| Weight |
11.0000 |
