02-08-2011, 09:56 PM
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#2 |
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20psi boost
Join Date: Dec 2009
Location: Harrisburg
Posts: 759
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It depends on what you want to do but I believe the factory hg is good to 12psi with arp studs or bolts. A mhg is more for the higher hp numbers. But i'm sure some one else will put more info in on this.
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