ok i looked. really i did. and couldnt find anything on this, im planning on doing a build in the spring if all goes well. i dont here much about anyone running a 12:1. whats the pros and cons compaird to the 11:1. im gonna be running a stage 3 hot cam and porting the head. most my buddies run 13.5:1 in their 450s and all their quads haul ass and are not tempormental at all.