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Old 01-04-2004, 09:41 PM
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most gauges aren`t accurate below 10 psi, some as much as 15. I run a high volume oil pump in my small block, at idle when it`s hot, the gauge reads zero, but at 650 rpm idle speed, that`s not turning very fast, and the cam is going half the speed of the crank, so that puts it to 325 rpm, so it`s going to be low at idle, as long as there isn`t any death knocks or loud rattles, I don`t worry about it.
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