Re: Carb question Need answers tonight

Posted by Jack Vines On 2008/8/1 19:47:47

Everything I know about the sizes comes from the Edelbrock web site I referenced above. Here is a copy:

THUNDER SERIES AVS? CARBURETOR
The next step up from our Performer Series Carburetors 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. Click here now for Thunder Series carburetor applications

Also, no knock on Edelbrock - any carb can have problems. I've probably rebuilt fifty AFBs and Edelbrocks. Some of them had been used, abused, left out in the rain until they were unsalvagable junk. One rare AFB from the R2 Studebaker took $450 in parts and labor by the time I got it back in shape.

thnx, jack vines