Yes,
that's a fine place to take a vacuum reading.
the fuel pressure  regulator does after all.

I haven't bothered to put my vacuum gauge on any engine for at least 15
years.

Scott
----- Original Message -----
From: "John Lauterbach" <jhlauterbach@BELLSOUTH.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, December 09, 2011 11:13 PM
Subject: Checking engine vaccum

> If one puts a Tee in line between intake manifold and fuel pressure
> regulator and then connects vacuum gauge to the Tee, will that give a
> good measure of engine vacuum at idle speed and say 2000 rpm?
>
> John