Good afternoon Kevin...Driving in a parade is much like being stuck in a traffic jam...While I drive our 49 - 288 all over Scottsdale, I would not drive her in a parade...she has a new aluminum radiator and water pump and runs normally between 160 and 190 depending on the day, the traffic and such...especially if the day is over 80 degrees...just my humble opinion...Ernie in Arizona

Good Morning...Another point to consider is that if the engine will not turn, it can also be that a valve is stuck...take the covers off of the valve train and lube things there as well. Since the head is off...with the valve cover off, you can rotate and move the valves enough to know that they are loose or if you have one or two of them that are stuck as well...Ernie in Arizona

Good Morning...You might want to travel to see the car yourself and drive it for ah hour or so. Cars that have been sitting often have old oil and sometimes even old gas in them and they will not run well that way. Radiators often need to be flushed and the engines as well...many stories of the museum cars that ran a few miles and then began to show the problems caused by the non/very little use...Ernie in Arizona

Good Evening...At what speed does the shimmy begin? And under what conditions>? This information may help one of us to figure out the problem. I note that one of the early posters on this thread installed a modern horiontal shock absorber syestem and reports no more problems...I have one on my Model A Ford of the same vintage and it worked there as well. I note that my new Jeep has one as weill...These cars do have their mysteries...Prehaps even a few ghost drivers, trying to help you out!
Ernie in Arizona

Good Evening Ross...I guess you must just scratch your head that some of these 'C' Students continue to provide you with work! Ernie in Arizona

YES...Mal suggested Granddaughters...I did not have one available, but our youngest daughter, born on February 29th 1984, was here, and sorted it out in a matter of minutes. I had discussed my ignorance with Mal...As usual, Mal's suggestion was correct. Ernie in Arizona

Miss Prudence at breakfast. First image so this is a test. Mal was right, daughter Erin figured it out, not me!

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I should say that I am fully vacinated and am only going to one local diner. Ernie in Arizona

Good Morning...Since Covid seems to be much less of a risk...Prudence and I are off to breakfast every once in a while...Ernie in Arizona

Good Morning...Very interesting for a guy who has a Packard and a Model A Ford in the garage...Thanks, Ernie in Arizona