Theoretically the press-in plugs should work just fine; after all, in practice they seem to have worked for the O.E.M. just fine, with perhaps what would have to labeled only as rare instances where one might have blown out. But at this point in time as having to be replaced, I believe beyond the issues of not being installed correctly the probably bigger issue leading to failures is that the product being utilized is just not of the quality of that as originally. And therefore with the increased instances of failure (after the O.E.'s product has been replaced) this has caused the acceptance in the practice in the utilization of the screw-in fixturing types.
With that consideration, and the fact that once I had an FE that I was tearing down, in which the distributor was lose but just wouldn't pull up and out of the block; after an untold amount of time and effort trying to extricate it, as it turned out the pressed-in gallery plug behind the distributor had dislodged, which then proceeded to provide a blocking function for the removal of the distributor!
I thread all of them!
Scott.
