Install a pair of exhaust manifolds from a mid-90's Ram or Dakota with a 318 or 360. They are a great design & should fit. I installed a pair of these on my 73 Charger 340 when I had it & they fit better than the original manifolds! Only thing I had to do was have a new trans dipstick assembly made as the RH side manifold interfered with the OE dipstick.

No Man With A Good Car Needs To Be Justified