Well i searched around...and i found that a cam with 265 duration is adequater for a d16a6 motor??? What rpm does this cam pull up to?? I want a cam that will pull all the way to 7500 no problems......what cam should i buy?? was thinking of the bullfrog one but i heard bad things about Gude and bad things about re-grinds. So now i am thinking CraneCams or Crower...How is JG????