The Edelbrock AVS2 Off-Road Carburetor with Manual Choke is a special version with Annular Flow Booster technology for near-EFI-like drivability that you can feel as soon as you step on the gas.
AVS2 Off-Road features a new spring-loaded needle and seat along with a spring-loaded anti-syphon ball in the accelerator pump circuit to prevent fuel drip common with standard carbs in off-road situations. The AVS2 Off-Road is unaffected by engine backfires since there are no power valves to blow out. For fast and simple part-throttle tuning; metering rods and springs can be changed in seconds without carburetor removal or fuel draining.
The Edelbrock 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. calibrated for single-quad applications and factory equipped with: Metering Jets - Primary .095; Secondary .095; Primary Rod .070 x .052; orange spring (5 Foor Hg).