ef4 turbo results? need a better spooling turbo

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Oct 17, 2011 | 07:24 PM
  #1  
im running a 35r now at about 28psi but i need something to get the same power which is 515 on pump and 600 meth. im thinking the ef4 but no youtube vids or reviews i have found i searched every forum
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Oct 18, 2011 | 12:48 AM
  #2  
Call MAPerformance directly.

http://www.maperformance.com/help.ph...us&mode=update
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Oct 18, 2011 | 06:10 AM
  #3  
https://www.evolutionm.net/forums/ev...ts-thread.html
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Dec 2, 2011 | 09:55 PM
  #4  
I believe it was cursedsm that recently made over 500whp on pump with a stock block
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