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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: dc7432 on September 01, 2014, 11:24:45 am
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All,
New rebuilt engine at idle I have 30 PSI going 65 mph it's up to 55-60 sound OK? Not sure it the machine shop put in a high volume pump. I'm using 10-30 with zinc additive have 10 miles on engine, thanks.
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Seems normal for an engine at operating temperature.