Carburetors

Carter AFB (Aluminum 4 Barrel) 4 Barrel

  • Used on all 426 Hemi engines.
  • Used on the 383 and 440 engines before 1968.
  • Replaced by the AVS in 1968.
  • Edelbrock currently makes an AFB carburetor.

Carter AVS (Air Valve Secondary) 4 Barrel

  • In 1968 Chrysler changed from the AFB to the AVS for all 4 barrel engines except the 426 Hemi.
  • The AVS is very similar to the AFB but better for emissions control.
  • Used on Chrysler engines from 1968 to 1971.
  • Edelbrock currently makes an AVS carburetor.

Carter TQ (ThermoQuad) 4 Barrel

  • The main body (float bowl) is made of black phenolic resin to keep the gasoline about 20 degrees cooler than a metal body.
  • Used on Chrysler engines from 1971 to 1985.
  • First used on 1971 340.
  • Replaces the Carter AVS.

Holley 2 Barrel

  • Used in a set of three in Dodge Six Pack or Plymouth 6 Barrel engines.
  • The center carburetor is a Holley 2300.
  • The outboard carburetors are special built secondary carburetors – i.e. no choke, no idle jet, …

Holley 4 Barrel

  • Sometimes used in place of the Carter 4 barrel carburetors.
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