Density Altitude will need to be known to make an accurate comparison with

whatever numbers are provided ~

On 24 May , 2018, at 5:43 PM, Stan Shapiro wrote:

> Anyone know, or can estimate, what my manifold vacuum should be on a rapid
> decel (throttle closed) from 3000 rpm.  I think it is supposed to go up.
> Any Idea what it goes up to??  I am trying to figure out my decel valve.
>
>
>
> 77 baywindow camper
>
> Rebuilt 2 liter, fuel injected.
>
>
>
> stan