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Message: <blockquote data-quote="joemomma" data-source="post: 1518064" data-attributes="member: 25929">Cobras (94 and 95) were rated at 240HP, versus 215HP for the GT.  Seems like a lot of parts (heads, cam, intake, roller rockers) for 25HP.  Perhaps the Cobra was underrated?I would think GT40 heads, intake, roller rockers, and your cam of choice would get you the 30-50 HP most people seem to think it will.  A good (aluminum) H/C/I setup will get you pretty close to 300 wheel.  But that is quite a bit more expensive than slapping some GT40s on there.  The heads are the big player here.EDIT: TF sells a 432HP (crank) advertised top end kit.  It's heads, cam, push rods, and roller rockers with gaskets and timing set.  But, they are the badass 11R heads.  That number is on an engine dyno, so real world would be slightly less, but that's still pretty close to 350 wheel.</blockquote>