Edelbrock 650 CFM Thunder AVS Series Carburettor (ED18064)

• 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 or other brands of similar design.
• Includes: Metering Jets - Primary .095", Secondary .098"; Metering Rods - .068" x .047"; Step-Up Spring - Orange (5" Hg).

The next step up from our Performer Series Carburettors is our Thunder Series AVS which was designed and calibrated to deliver optimum street performance in hundreds of applications. Primary and secondary booster clusters offer the most accurate and up-to-date calibration available for today's fuels and octane levels. The Thunder Series' unique Qwik-Tune Secondary Air Valve allows for limitless calibration of the secondary circuit with simple hand tools while on your vehicle. It can be easily adjusted - in seconds - to suit your application, no extra parts required to achieve optimum performance. They are available with either manual or electric choke in sizes of 500, 600, and 800 cfm (cubic feet per minute) for optimum performance for small-block or big-block V8s