As said before to be safe a compression test first and foremost. Depending on you budget the 28's are a great carb, but the stockers are also good. If you want to pick up a range of main jets 330,320,310,300 ECT and 27.5 and a 30 pilot, having a good assortment is always good and not to expensive. Sent from my LG-H831 using Tapatalk