Holley Carburetor Ultra Street Avenger 670 CFM With Black Billet Metering Blocks/ Base Plate

Holley's Ultra Street Avenger Carburetor (0-86670BK) features an all-aluminum build with anodized black 6061-T6 billet aluminum Metering Blocks and a Base Plate. It's a lightweight alternative to your traditional zinc carb, which tends to weigh five pounds more. The Ultra Street Avenger flows at 670 CFM so as not to starve the engine. 

Features and Benefits:
- All-Aluminum Carburetor with Tumble Polished Aluminum Finish 
- Anodized Black 6061-T6 Billet Aluminum Metering Blocks and Base Plate
- Approximately Five Pounds Lighter than Zinc Carburetors
- Quick Change Vacuum Secondaries for Easy Tuning 
- Integrated Clear Fuel Level Sight Glass for No-Mess Fuel Level Adjustments 
- Factory Preset Electric Choke for Easy Startups 

Holley has an impressive track record, which includes over 100 years of business operation. Plus, they've proudly powered every NASCAR champion since the 1960s. Thus, the Ultra Street Avenger is equipped with the best tech and performance out there. It's got the same optimized street calibration as comparable zinc carbs for compatibility with your vehicle's performance level. 

Holley's quick change vacuum secondaries allow for easy tuning in different scenarios. You can tune the carb for maximum performance, or you may wish to tune the carb for optimum fuel economy. The Ultra Street Avenger also features four vacuum ports for additional vacuum accessories, plus built-in fuel filters and an included fuel line kit.