Well how can you advance your timing if you have no ability to tune it? Honest question.

IMO you wont see 20-30whp gains from just an octane increase/meth kit. Thats pretty unreasonable. But if you are eventually going to go turbo, then put it on and let us know what happens.

Like you said, almost no one does it, theres a reason for that. Cant really ask a question if you already know the answer :P