Cadillac & LaSalle Club Discussion Forum

Cadillac & LaSalle Club Forums => Technical / Authenticity => Topic started by: 60eldo on December 02, 2021, 07:42:05 PM

Title: 1960 Vacumn
Post by: 60eldo on December 02, 2021, 07:42:05 PM
  Just wondering if a reading of 20 is good for vacumn on my 390.
Title: Re: 1960 Vacumn
Post by: Matt Innocenzi on December 03, 2021, 08:27:47 AM
Assuming you mean 20 inches of mercury, that is incredibly good!  Normal vacuum on the 390 is about 15 to 18 inches Hg.