[Chevelle-list] Fw: Vacuum advance

[Dale]

Use the timed port.  My Edelbrock 1406 has two ports; on the left (facing
engine) is the timed port and the right is manifold vacuum.  Instructions
say the timed port is for '.emissions controlled engines' and vacuum port is
for '.non-emissions controlled engines' making one think the manifold vacuum
would be correct for (in my case) my 67 327 since it's a non-emissions
controlled engine.  Not so, with manifold vacuum you get full vacuum advance
at idle and with timed port there's no vacuum until you get in the 1200-1500
RPM range. Instructions go on to say, "If your distributor has timed vacuum
advance, you will hook the vacuum hose from the distributor to the passenger
side vacuum port on the new carburetor. If it has full vacuum advance, it
will be hook up to the driver side port."   Except for maybe street use with
a very large cam, everyone I've talked to says to use the timed port.so I
do.

 

Dale McIntosh

 <http://www.chevellecd.com> 1966/67 Chevelle Reference CDs

ChevelleStuff.com <http://www.chevellestuff.com> 

 <http://www.chevellecd.com>  

 

  _____  

From: chevelle-list-bounces at chevelles.net
[mailto:chevelle-list-bounces at chevelles.net] On Behalf Of Johnny Palmer
Sent: Monday, May 21, 2007 5:30 PM
To: The Chevelle Mailing List
Subject: [Chevelle-list] Fw: Vacuum advance

 

 

----- Original Message ----- 

From: John  <mailto:john_chrissy at shaw.ca> & Chris 

To: The <mailto:Chevelle-list at chevelles.net>  Chevelle Mailing List 

Sent: Saturday, May 19, 2007 3:54 PM

Subject: Vacuum advance

 

Is it better to hook the vacuum line from the distributor advance to the
timed port or the steady vacuum port on the carb..???...My friend and I are
having a discussion on that and either one of us are completely sure..Just
wanting some other input..

Thanx..

John Palmer

66 Malibu

327 4 speed



  _____  

avast! Antivirus <http://www.avast.com> : Outbound message clean. 


Virus Database (VPS): 000742-0, 05/21/2007
Tested on: 5/21/2007 6:42:52 PM
avast! - copyright (c) 1988-2007 ALWIL Software.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://chevelles.net/pipermail/chevelle-list_chevelles.net/attachments/20070521/1eeeb106/attachment.html