TwinTurbo.NET: Nissan 300ZX forum - Gasket match lower plenum to heads?
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Subject Gasket match lower plenum to heads?
     
Posted by supersh0cker on March 13, 2014 at 4:07 AM
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Message I'm rebuilding my vg30dett (40p heads) and I'm trying to get the most out of it as possible. I have gasket
Matched the upper and lower plenum. Plan on getting MSP manifolds. Stock valves. I'm having heads sent to shop for 3 angle valve job, should I port and polish exhaust ports? Should I gasket Match the lower plenum with the heads? And should I port polish myself or is it really something a shop should do?

     
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