I have a 62 Impala with a built 355/6spd, with full length headers exiting outside the X-frame pointing outward with really tight clearence on the oil pan & filter, I would like know if there are any companies that make a good guality 3/4 length header that will clear the Z-bar in stock location & not exit below the frame? I talked to Patriot about their Clipster line but they could not tell me if they would fit.