Wondering if anyone can help me out as i am in need of a left side exhaust manifold on my 67 Sports Deluxe.Just about have my car ready to go after a repaint and a engine rebuild and realized the manifold is incorrect.The manifold needed is casting # 3909879 which were on 67,68 and 69 Camero ,Chevelles and Beaumonts that were in 396 325hp cars.That was a replacement manifold for #3902401 which was replaced in March 67 the same month my car was built.If anyone can help it would be greatly appreciated as i really would like to keep my SD as original as i can!Site donation if i can find one!! Thank you.