Hey guys I picked up a 2010 600 sx sp. It's got a bit of a bog off the hop but pulls good from mid to wot. Still had stock jetting 50 pilot and 430 main. Clip is in the middle. What should I be running for jetting at 900 ft elevation? Usual weather riding it -5 to -20. What should I have the timing control set on? I know carb jobs can be finicky but would like to get it dialed in for better take off and throttle response. Thanks for the advice in advance.