I bought what was supposed to a Zex Nitrous kit that was supposedly taken off of a '98 GT. Now that I'm going through everything I see that it is kit # 82015 which is for a return style fuel system. Is there any way to make this work on my '03 GT? The instructions call for one of the lines to run to the fuel pressure regulator, obviously I ain't got one. Any help would be greatly appreciated!