Hey folks I’m new to the forum ( not new to cars ) I just sold my 65 lesabre and picked up an 89 caprice wagon. The car needs very little but one of those few things is a passenger side exhaust manifold. The 307 is everywhere but I can’t find new manifolds for it to save my life. Any suggestions? My existing manifolds don’t look like they’re worth fixing they’re pretty crusty. From my understanding the manifolds are mostly interchangeable between the 307-455 but I’ve seen some that don’t have the second outlet on the passenger side for a crossover.