I changed the air cleaner on my 2008 Big Dog Mastiff to a bullit shaped/cone shape air cleaner purchased from Big Dog Parts King. I have had it to 4 different custom shops and no one can get it right. They have changed the jets, adjusted carburetor, even took it to Dyno trailer at rally and they couldn't get it right. Anyone know what else to do? I am located in Myrtle Beach, SC. I would welcome anyone to call me and give me any suggestions. Really appreciate any help!