New streetrodder from Pa.

My 72 340 said

Don't know anyone that runs a Performer, my Duster has a Torker on it, pulls pretty hard to 6000, don't know the CFM of the Holley, need to find out, when my brother bought the car it had a 700 double pumper on it.

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There should be a number on the holley right front that has the list number on it, (like 3310) which is a 750 cfm. You may go to www.mortec.com to get a chart with most of the holley numbers on it. Now it's a chevy site, just scroll down to the holley section.