Alright thanks I seen that chart but wasn't sure to follow the "318 70-73" or the "dart 72-73" . What's the difference? Is the " dart" a reference to an a-body? And the 70-73 b,c -body?
im gonna put on an exhaust manifold that i got off of a 73 duster 225 onto a 170 i was wondering is it really nececesarry to spray the gaskets with that copper spray-a-gasket sealant?