well for dohc i dont have money to build more then one thing at a time..hehe..im just tryin to be safe for the time being..although for my build i dont think much fuel upgrades will help..im only aimin for around 200-220..i just need a different tranny as well..right now i believe i have a S1..but its already gettin hard to shift into gears when ur stompin it..heard the gsr cable tranny is best to have for this set up.. or the y1?..next thing on my list..new better tranny..