I recently picked up a 12:1 piston for my 350X which is stock besides a K&N,removed ex. baffle, 20 in. Holeshots, and a 14T front to make up for the smaller tires. Was wondering if anyone has any experience with this piston. Can I get by on 93 octane or 50/50. What should I expect as far as a seat in the pants difference regarding power/quickness. Hopefully it would be noticeable since stock is 8.5:1. I also have a 400EX carb to try out as well but I need some more jets to play around with. Any input is appreciated...