1963 Valiant V200 Wagon

Look into a flowmaster ball and socket collector.I have a kit in the shop.It's a great solution as it's the same head pipe manifods style connection mopar always used.Simply cut off the regular collector flanges and weld the ball and socket in.It allows for more adjustability in the angle the pipes meet at. You may be blowing out gaskets due to a severe or crappy angle at the gasket.Or just plain crap gaskets.