I was thinking about getting a fenton dual exhaust kit for my 55 2nd series 1/2 ton with a 235. Has anyone installed one of these systems? How hard was it and how does the carb sit? does the carb stay in it's original location? I'am hoping by installing a dual exhaust set up I can get better gas milage. I have already installed a pretronix electronic ignition and has made a differnce and it works great. thanks for any help and advice concerning this.