I have been working on a dual exhaust set up with headers for my 89 F150 project. I am 90 degree off the header to a 90 between the frame and the body out the side.Tonight I realize the pipe going under the frame rail is right below the fuel line and fuel pump. I am thinking back to the drawing board. Before I do ditch everything would header wrap or a shield work? Thanks. I can take pix tomorrow. Jim