I know some of you have done this mod to your big reds. The choke plunger kept giving me fits so I picked up a 300ex carb QB01A. I have read to use the stock 250es jets but also read another post that said to run a 120 main. I have a 130 in my old carb. I just order a bunch of new jets (125-148) due to the 300ex carb using the long style jets and my jets were the shorties. Not sure what to start at. I’m in Omaha so 1100 ft elevation. Stock airbox, uni filter, aftermarket quad boss quiet exhaust so basically stock.