I have a graydon proline 2 into 1, which is the tube type never had any problem with it. i also ran a lectron carb with this set up. the only thing that i didn't like about this is that the stock air cleaner box won't work. so you would have to modify one. I think i have the one i modified and the filters for it to. sell it all for $100 + shipping. I'm located in Indiana