Edelbrock Thunder Series AVS Carbs & Pro-Flo Air Cleaners






Undeniably the most innovative and dependable street performance carburetors available today.

They feature the most accurate and up-to-date calibration available for today’s fuels and octane levels.  The unique Qwik-Tune secondary air valve allows for limitless calibration of the secondary circuit.

Available in 500cfm, 650cfm and 800cfm flow ratings, you have your choice of manual or electric choke.  The 500cfm version is also available calibrated for dual-quad setups.  All models are optionally available in bright EnduraShine chrome-like finish.

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, Performer RPM, RPM Air-Gap, Torker II and other brands of similar design. Includes: Metering Jets – Primary .095, Secondary .098; Metering Rods – .068 x .047; Step-Up Spring – Orange (5″ Hg). Use Carb Studs #8008 or #8024 if needed.

P/N 1806 (650 cfm, square-flange, electric choke (non-EGR)

Edelbrock triple chrome-plated round air cleaners work with all popular 5-1/8″ diameter carburetors (Performer Series, Thunder Series AVS, Holley, Thermo-Quad, Quadrajet and Carter AFB).

The 10″ and 14″ models have knock-outs in the air cleaner base and include an adapter for crankcase ventilation. #1208, #1209 and #1221 fit all Edelbrock carburetors.

Heights of air cleaners are in parentheses, measured from the gasket flange to the top of the supplied retaining nut. Dimensions are accurate within 1/8″.

P/N 1221 (14″ diameter with 3″ element, 3/8″ deeper flange –  3-3/4″ tall)

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