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).

Designed and calibrated for small cubic-inch engines such as 305 c.i.d and smaller Chevrolet; 302 c.i.d. and smaller Ford and dual-quad applications such as Edelbrock C-26, F-28 and Street Tunnel Ram. Match with an Edelbrock Performer or Performer EPS manifold and other brands of similar design. Includes both timed and full vacuum ports for ignition advance. Comes with: Metering Jets – Primary .086, Secondary .095; Metering Rods – .065 x .052; Step-Up Spring – orange (5" Hg).

Designed and calibrated for good street performance and fuel economy in small-block and small displacement big-block engines. Match with an Edelbrock Performer or Performer EPS manifold and other brands of similar design. Calibrated 2% leaner than #1405. Includes both timed and full vacuum ports for ignition advance. Comes with: Metering Jets – Primary .098, Secondary .095; Metering Rods – .075 x .047; Step-Up Spring – yellow (4" Hg).

Q-Jet Series Carburetor - M4M - 1980-89 For 1980-89 305-454 Chevy/GMC trucks with an electric choke. Compatible with EGR. Not for computer-controlled vehicles. For light-duty pick-ups, Suburbans and vans (up to 1-ton). Main Jet: .073; Metering Rods: Primary-50M, Secondary-DR.

Edelbrock triple chrome-plated round air cleaners work with all popular 5-1/8" diameter carburetors (Performer Series, Holley, Thermo-Quad, Quadrajet and Carter AFB). This 14" model has a knock-out in the air cleaner base and includes an adapter for crankcase ventilation.  #1221 fits all Edelbrock carburetors. Height of air cleaner is 3-3/4", measured from the gasket flange to the top of the supplied retaining nut. Dimensions are accurate within 1/8".

• Model 2300 w/ center hung float • Manual choke • Ford A/Tkickdown • Power valve blow-out protection • 50cc accelerator pump • Does not work with A.O.D. transmissions • 100% wet-flow tested and calibrated

• Model 4160 w/ side-hung floats • Small V-8 or 6 cyl. engines • 2x4 street tunnel rams • Electric choke • Ford A/T kickdown • Power valve blow-out protection • Vacuum secondaries • 100% wet-flow tested and calibrated

• Model 4175 spread bore • Q-Jet/Thermo-Quad replacement • Universal calibration • Vacuum secondaries • Vacuum for: PCV,EGR, power brakes, distributor, air cleaner & canister • Electric choke • Power valve blow-out protection • 100% wet-flow tested and street calibrated

AS ABOVE (WHEN IN SEASON)

• Model 4150 w/ center hung floats • Electric choke • Quick-change vacuum secondary • Ford A/Tkickdown • Power valve blow-out protection • 4 Vacuum ports (PCV, power brake, spark, accessories) • Lifetime limited warranty • 100% wet-flow tested and street calibrated