head studs allow for more boost pressure and no head lift.

You wont have to change your head gasket if you swap them over one by one. If you un-do all of your head bolts at once, you pretty much need a new head gasket.

if you are wanting to lower the compression the "cheaper" way a copper or any type of thicker gasket will work. I recommend Cometic.

Ziptied bashed them above, but a close friend and member of the VCA club was running 1600 rwhp with a cometic.

-Ant.