Can I cut down in heigth the carburator vent/fuel overflow tubes without seriously endangering the performance or safety aspects of the unit? The tubes are sticking in the bottom of the air cleaner I use, it's a K & N element type fliter top. I was thinking if possible of taking them down 1/2". Hood clearance is a problem or I would just delete the drop down carb base and with my 3.25" filter would be just fine.