it was stock man. I ran a stock crank and stock ported juggs this year. at all 3 races. keep having the head gasket go on the 4mil motor so a ran a stock motor with timming, 34mm carbs and a rocket pipes . and keeped up to a 392 cub pretty good when it comes up to set up and rider . jays bike is set up for a fucking 10 year can ride , Its gay that the cma put in the rule for no strokers and u can't bored over .80 from stock . no frame moded and that part got to be retail to the ppl. so no many racing to me . ill be on A YFZ 450 this year