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Oil pressure and catalytic converter question - 7.4L TBI

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Old Sep 13, 2012 | 8:19 PM
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Default Oil pressure and catalytic converter question - 7.4L TBI

I was curious if 30psi was normal once my engine warms up (50ish when I start it up). 30 is the middle of the gauge. At idle it's around 20, is this normal?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
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Also, has any one experienced a rough idle caused by bad catalytic converter or muffler? I've replaced; filters, plugs, dist. cap, intake gaskets, air/fuel filter and still there's a rough idle.
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