TwinTurbo.NET: Nissan 300ZX forum - I guess, valves were just not closing fast enough.
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Subject I guess, valves were just not closing fast enough.
     
Posted by dfenton2 on July 01, 2017 at 2:52 PM
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In Reply To So more rpm then the springs could handle with the valvetrai posted by kickerzx on July 01, 2017 at 01:16 PM
     
Message Engine ran like shit right from the first start with the heads set up that way. I didn't change the valve springs or cams after it blew. The machine shop just set the right spring pressures and now it runs awesome.

     
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