TwinTurbo.NET: Nissan 300ZX forum - Don't forget you need HD valve springs w 500's.
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Subject Don't forget you need HD valve springs w 500's.
     
Posted by ZXoltan on August 07, 2021 at 8:50 AM
  This message has been viewed 186 times.
     
In Reply To Jwt 500s hands down. Don’t waste your money on the 400s posted by Stanky (BC) on August 06, 2021 at 07:28 PM
     
Message You will need adjustable exhaust cams if you dont already have them, since the cams are advanced by 4 degrees. Adjusting the cams should smooth the idle out, but that is typically done on the dyno during a tuning session.

     
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