I'm headed for the dunes this Thursday. I have installed the K&N slip on and have put a 167.5 jet in it and still too lean. I assume it's too lean. Haven't checked the plug, but when a mash the gas, it has a nasty dead spot in it and acts like it runs out of gas until I back off of it. I guess my question it, does anyone know if I can just keep increasing jet size until it comes around, or is it necessary that I adjust the needle with the jet. I would like to just changes jets without messing with the needle, but if I have to, can someone tell me exactly how to adjust it. Any help would be appreciated. Thanks.