i have a 05 raven and its real boggy on the low end stock and i have been told to go 1 down in the front and 2 up in the rear and that will fix that problem thats fine but what am i looking for and brands should i go for and do i go with a differnt chain and i know i will need the speedohealer so i just need to be pointed in the right direction for my sprockets and brands thanks alot guys