Got it back on the road and the hesitation is gone! But I made a quick cell phone video, you can hear a rattle that I don't hear when driving (my hearing is very bad). Think it might be detonation? I think the E brake handle rattles too, hope that's all it is..
Maybe. I ran wires though them but never saw any evidence of blockage. Could have come out with spraying/soaking. The two plugs under the mains had some white crud around the gaskets but other than that everything looked OK. Anyway, again appreciate the help and photos.
Suspect Moriarity was right. Suspect too that the OP on this thread (https://www.jalopyjournal.com/forum...–low-to-mid-range-only.1247670/#post-14294389) had the same drama, but never got any feedback from him. Cheers, Harv