Ported Vaccum or Intake - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 10-09-2006, 01:16 PM
Registered User
Join Date: Oct 2006
Location: pittsburgh
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ported Vaccum or Intake

Iam currently working on a 72' corvette with the original 350 with an edelbrock 600cfm carb and in take on it. I was swaping distributors for an accel HEI unit with vacuum advance but on the carb i could not find any ported vacuum to hook the advance up to, i have talked to some other people about this and they said that GM runs on intake vacuum for the advance but regardless of where i run the vacuum hose to the car just doesn't run right. If i take the hose off it runs good but has no vacuum advance. Timing is spot on. Any ideas?? Thanks

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 10-09-2006, 03:53 PM
Registered User
Last photo:
Join Date: Sep 2006
Location: kansas
Age: 70
Posts: 515
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
vac advance

go to this site;www.camaros.net/forums/showthread.php?t=17599 and your answer will in there, towards the end in a section called "vacuum advance 101". I asked the same question about a week ago. If you can't get it , the answer is manifold vac....
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-09-2006, 04:37 PM
Last wiki edit: Ford axle ratio codes
Last journal entry: Rear Suspension
Last photo:
Join Date: Aug 2005
Location: Prattsville
Posts: 6,909
Wiki Edits: 31

Thanks: 5
Thanked 141 Times in 131 Posts
don't buy an Accel anything, unless you want to replace it later on when it fails
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-09-2006, 04:43 PM
poncho62's Avatar
Hotrodders.com Moderator
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Posts: 17,873
Wiki Edits: 5

Thanks: 45
Thanked 638 Times in 481 Posts
Stock Chevys use ported vacuum for the advance. Its at the front of the carb about 1/3 of the way up.

Ported or manifold advance is an ongoing debate amongst hotrodders.

BTW, this being a vacuum question, I am moving it to the engine forum.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
QUICK! I have ONE HOUR! Will this Intake work??? Dizturbed One Engine 3 05-14-2005 09:10 PM
Question about intake manifold distrobution for Nitrous experts... sizemoremk Engine 5 04-29-2005 11:16 PM
Theory: Intake volume vs cylinder volume / engine vacuum 59vette Engine 6 04-29-2004 12:03 PM
"Dry" Intake Manifold Question bluesman123 Engine 4 02-11-2004 12:12 PM
Cam Help black66 Engine 3 05-12-2003 06:15 PM

All times are GMT -6. The time now is 10:57 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.