Here Here is the thread. The first post says it all. 00 GT Only mods are VT stage II cams, valve springs, and flowmasters. 27.4 hp 11.4 tq.
The stage 1's might be able to make smog, but there is still some debate on that, as no one has said wether or not they could pass.
I totally understand your need to stay smog legal. Texas (mostly Houston) has some serious smog standards.