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Thread: Holley carburetor has no list number, what do I have?

  1. #1

    Default Holley carburetor has no list number, what do I have?

    Hi! I have a older Holley carburetor that I've had for years. I need to purchase some parts for it. I don't have a list number on the air horn/choke tower. I think it's possibly a series 3310 of some sort or 4150? I have a few pictures to post and maybe this will help identify it. Thanks for any help!

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  2. #2


    It has a secondary metering block, so it would be a 4150. It's been a real long time since I've had one of those, but it should be a 3310-1 I believe. 780 CFM vacuum secondary. Of course, since it has a carb shop sticker on it, could be one they modified & replaced the secondary metering plate with a metering block.

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