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Old 01-16-2020, 03:04 PM
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Kenth Kenth is offline
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Join Date: Feb 2003
Location: The Kingdom of Sweden
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The 4242S uses a 11/16" diameter and 2.290" long pump, same as all 1966-67 Pontiac AFB´s except 1966 326 engines.
Doesn´t hurt to put a couple of engine oil drops on the leather shirt at install and expand shirt some as Jon said..

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