this winter im thinkging of beefy up my 02 bonny america. not sure whether ill go 865 or big bore 905. but a friend suggested grinding the heads a 10 thousandth instead. mhe said it should give more horse less heat and would only need a slight valve adjustment meaning less cost at the same time.. thats question one.. question 2 would it then also be effective to the power to grind and one of the other mods, has anyone done that, problems with it, advice would be wonderful. ive never modded a bike before. today was the first by removing that god awful cali bs. i pulled the cans and exccess vaccuum lines and capped the nipples. that even seemed to give more power back and now it stopped bogging and stalling.
