[CRF230dad]

I have read the sticky and many posts about rejeting. I want to pep up my son's 05' 150 and plan on uncorking the air box but use the stock filter for now (more surface area than the round filters). I will modify the baffle until I can afford a new pipe for him. What I need to know is needle position and jet sizes, fuel screw & idles screw adjustments. We mostly ride So. Calif. upper deserts & Gorman around 2,800 - 4,500 ft. We sometimes ride at Big Bear around 6,800 ft. and are planning to go to Salton Sea or Ocotillo Wells at -45 ft. and 722 ft. but those are not frequent trips. I know one jet size does not fit all but for are routine trips what do you guys recommend?

Thanks!