...The 7mgte suffered the same issues with the HG's that the 3.0 and early 3.4's did, w/proper rebuild and ARP studs, the HG issue is resolved, that is until you try to go beyond 12-14psi boost on the oem HG.
I don't believe that a different head gasket and ARP studs, and a "proper rebuild" (what, as opposed to the factory's improper build?) will "resolve" the inherent design flaw in those engines. A new head gasket of course will repair it.
Gnarls.