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Old 01-27-2021, 12:05 AM
mhm1966 mhm1966 is offline
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Default Holley primary metering block stamped 5271

The Holley carburetor is List-4053. The primary metering block is stamped 5271. Can anyone tell me the application for this primary metering block.
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Old 01-27-2021, 12:33 AM
earntaz earntaz is offline
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The 5271 was used on the pri side of 9188AAA, 3310P 3878261 EH, 3310-2S. The 4053 used a 5584 (4053P 3923289 later issue). Also 3828 was used 4053P 3923289 Possible later issue. I don't see where a 5271 was used on a 4053 ...
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