Thanks all, this is great info.
I'll definitely try the 15-second test before replacing the distributor parts.
I got this car in Nov 1994 and suspect most of these parts are nearly that old -- other than the plugs.
Any recommendations on sources for original Honda parts? I prefer go to local shops like Lappens and NAPA, which mostly sell 3d party parts like Beck Arnley distributor parts.
Thanks again.