i was stuck at a 3.2 with a fsic. meth let me drop to a 2.8 and added 7 degrees timing. i was going to get another l67 car and run meth only and see how small i could go. was thinking 3.2 maybe 3.0 with just meth, nothing else but maybe injectors. i say maybe on the injectors cause you pull fuel from the maf in the tune, the meth makes up for the fuel you remove. makes your octane content higher and cools the air charge, and cools the blower.