Re: 1953 Delco Vacuum Advance

Posted by Tobs On 2023/9/1 2:46:11

A couple of months ago I went through my Distributor, and had to replace the vacuum pot. When I added an extra washer inside, it shifted the vac advance.
From my Caribbean Blog page:
Adding the washer shifted the vac advance curve. Before, advance started at 4,5 in, and was all in by 6. Now it starts at 6, and is all in by 9 inches of mercury.

My 359 has not had any pinging under load, with this setup.