What mods would be the best to get. A cam for 40 $ or a 14cc head for 45$? i have a flywheel,.020 rod and adv timing keyway. just trying to figure out wich one would be the most usefull.
if my plug is really black but not wet at all will the gas wash the oil of the cyinder wall and cause my motor to cease or blow? its black but i have not raced it yet i just took it up and down the road twice?