Edelbrock1901CarburetorsThe Edelbrock #1901 AV2 Series 500 cfm Carburetor is designed and calibrated for small cubic-inch 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 is calibrated for single-quad applications and factory equipped with: Metering Jets - Primary .095, Secondary .095, Primary Rod .070 x .052, orange spring (5' Hg). Use carb Studs #8008 or #8024 if needed. Match with an Edelbrock intake manifold for the ultimate induction upgrade.Edelbrock AVS2 Series carburetors are the next generation of carburetors. Featuring annular flow primary boosters, adjustable secondary air valves, and a new calibration, these AVS2 carburetors offer improved 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. 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.
