hey guys, we recently installed a 72 buick 350 4bbl with a turbo 350 into my 85 regal. I now need to do an exhaust setup for the car. I have the stock manifolds on it but that's about it. I was thinking about the summit kit SUM-680146. But i dot think it will get even close to the manifolds. The car also has a stock crossmember. I would rather not send the extra money on a dual hump right now. i thought since im not running headers I could get away with it. Please let me know your input guys thanks.