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Old 12-26-2010, 10:01 PM
68SSCamaro 68SSCamaro is offline
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Default Holley base plate ID needed

I recently purchased a 3310-1 and it had the wrong base plate. The cast numbers are 2R4233F and there are no stamped numbers on it. Does anyone know what carb models this went on?

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Martin
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George Olsen Chevrolet San Francisco
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Old 01-09-2011, 12:18 AM
68SSCamaro 68SSCamaro is offline
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Default Re: Holley base plate ID needed

I finally had time to take a couple photos. Throttle plates are 172s.
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George Olsen Chevrolet San Francisco
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Old 01-09-2011, 01:46 AM
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VintageMusclecar VintageMusclecar is offline
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Default Re: Holley base plate ID needed

Looks like an early 3310 "EH" baseplate. The 3310-1 used a different casting with a flat machined boss on the pass. side rear corner that can be drilled to accept a PCV tube like the `66-`72 style 780's.
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Old 01-09-2011, 02:04 AM
68SSCamaro 68SSCamaro is offline
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Default Re: Holley base plate ID needed

Thanks, I have a correct 3310-1 baseplate stamped 33101. It has the flat boss that you mention and a vacuum port out the rear. I'll just rebuild with that one and plug the rear.
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Martin Foltz
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George Olsen Chevrolet San Francisco
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