hi folks I need some input has anyone out there done a mod on there carb like the stage 1 or 2 or soforth ive only installed a dg r exhaust starts good seems to rev nice but haven't tried it since we have a lot of snow I live in labradoe with the altitude of about 2000 above sea level if any one tried this or any other mod please let me know ,ive also heard about the 22 cent as well but cant seem to find the correct washers for the needle jet but I rather do a good and full proof mod .thanks