The AVS2 Series is the next generation in Edelbrock carburetors. The AVS2 features annular flow primary boosters with a new calibration for improved off idle and cruising performance. The annular flow booster design delivers improved fuel atomization to eliminate flat spots that may be encountered when the carburetor transitions from idle to full throttle. Each annular booster features eight, equally spaced orifices to improve fuel metering from idle to the main. The improved flow metering makes this carburetor ideal for use with a wide variety of small-block and big-block engines with either dual- or single-plane intake manifolds. The AVS2 includes both timed and full vacuum ports for ignition advance.
500 CFM, MANUAL OR ELECTRIC CHOKE (THE ULTIMATE PERFORMANCE CARBURETOR) Designed and calibrated for small cubic-inch engines and dual-quad applications such as our RPM Dual-Quad Air-Gap, Edelbrock C-26, F-28 and Street Tunnel Ram. For single carb applications, match with an Edelbrock Performer or Performer EPS manifold or other brands of similar design. Includes both timed and full vacuum ports for ignition advance. #1901/#1902 are calibrated for single-quad applications and factory equipped with: Metering Jets - Primary .095, Secondary .095, Primary Rod .070 x .052, orange spring (5' Hg). #1903 is calibrated for dual-quad applications and factory equipped with: Metering Jets - Primary .095, Secondary .077; Metering Rods - .070 x .052; #1904 includes Primary .095, Secondary .077; Metering Rods - .070 x .052; Step-Up Spring - orange (5' Hg). Use carb Studs #8008 or #8024 if needed. Match with an Edelbrock intake manifold for the ultimate induction upgrade.
INSTALLATION NOTE: Manual choke AVS2 Carbs cannot be converted to electric choke. Carbs #1903, #1904 and #19034, #19044 are calibrated for dual-quad applications only and need to be purchased together, one manual and one electric. For single carb small-displacement engines and Street Tunnel Ram applications use carbs #1901, #1902, #19014 and #19024.
650 CFM, MANUAL OR ELECTRIC CHOKE (THE ULTIMATE PERFORMANCE CARBURETOR) Designed and calibrated for optimum street performance in small-block and some big-block engines. Match with a variety of manifolds that include Edelbrock Performer, Performer EPS, RPM Air-Gap, Performer RPM, Torker II or other brands of similar design. Includes: Metering Jets - Primary .101, Secondary .098; Metering Rods - .070 x .037; Step-Up Spring - Orange (5" Hg). Use carb Studs #8008 or #8024 if needed. Match with an Edelbrock intake manifold for the ultimate induction upgrade.
INSTALLATION NOTE: Manual choke AVS Carbs cannot be converted to electric choke.
WHY IS AN ANNULAR BOOSTER BETTER?
The typical downleg boosters (on the left), are located in the carburetor primaries and simply provide fuel down the center of the venturi. Annular boosters (on the right), feature eight equally spaced smaller holes for better fuel atomization. The improved fuel atomization eliminates flat spots when the carburetor transitions from idle to part throttle for better low rpm performance. The annular boosters can also potentially offer improved mileage in some applications.
WHAT OUR CUSTOMERS THINK!
'Last weekend, I took a cruise from Arlington to Spokane. This was about a 350 mile trip one way, plus I drove through the Snoqualmie Pass at an elevation of 3,000 feet. On last year's trip I got around 16 mpg, this year it was closer to 18 mpg. Throttle response off idle is phenomenal! When compared to the Holley, it's not even in the same league - the AVS2 out performs it easily. Aggressively opening the throttle gave a very crisp response and excellent power.'
- Brian Hosenfeld, 1966 Chevy Nova
'The smooth throttle response is the largest comparable change in this new carb. It just seems like the restriction has been removed on my car.'
- Mark Taylor, 1968 Chevy Chevelle
'Super responsive, made traffic cruising much more enjoyable.'
- Michael Volkmann, 1971 Plymouth Duster
PRODUCT EMISSIONS GUIDE The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.
For Racing Use ONLY
For Use on Pre-Pollution Controlled Vehicles (PPCV)
Stock Replacement Part