Re: {Chrysler 300} A Thanks to everyone.

Hi James, my 1964 single carburetor K had the same problem, replaced the distributor 2 times with Petronix , went back to original, changed out the old Edelbock with a new Edelbrock carb, changed fouled plugs 2 times and the wires once.

My mechanic kept telling me to drive the car, All the blue smoke stopped once I did that. Still rough idle, went back to the mechanic 2 times to adjust fuel mixture, The second time I went back he found the sweet spot of fuel mixture. I believe my problem could have been vacuum and coke setting, he was trying to get the hard starting fixed.

On Tue, Feb 21, 2023 at 8:50 AM 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Hi All,

I wanted to take a moment and thank everyone for all the help over the last few months. We drive the 1964 300K down from our little house in Winters, CA (which has the garage with a lift) down to our San Francisco residence. The car ran fine. The only real issue is the PO put on an exhaust system that is so loud it is annoying. I need to either order a new system or find a good shop in Northern California that can-do first-class work.

The one important outstanding problem is that at idle the engine is rough. At first, I thought it was the carburetor. I swapped that out for newish Edelbrock and it did not change. I swapped out the Prestolite for a later orange box dizzy and it did not change. I put new wires on it and it did not change. Running out of ideas.

One thought I have is that I am using NGK plugs that are on the cold side (#7). I am going to swap in some #5 plugs which are hotter and see what I get.

Again, thanks all and over the next week we shall see if I can get it to settle down for city driving. On the freeway it hummed along. This will be the first week in 22 years that we have not relied on the 1947 Desoto.

Best, James

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