Hi, I need to verify that I don't have a blockage in the cast elbow that is threaded into the bottom of the manifold. I wonder what the chances are that the elbow will simply snap when I try to remove ? Not sure if the plug on top is worth trying to remove or do they basically freeze up also. Any thoughts would be really appreciated.
the specs are 1990 7.4 mag cast manifold thru hull exhaust
the specs are 1990 7.4 mag cast manifold thru hull exhaust