The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-12-2014, 04:00 PM   #1
ozbowhunter
Registered User
 
Join Date: Jun 2012
Location: St Augustine, florida
Posts: 147
setting up the edelbrock

so I replaced my 750 qjet carb with a 600cfm edelbrock the question I have is
I know one of the vacuum lines is timed I think this is for the distributor and the other constant after setting it up I noticed my aircon is not working now I connected the vac lines from the ball type item on my left side fire wall (looking in to the bay) to the constant vac outlet and the dissy to the timed is this correct

the air con worked well before the swap so have I put the vac lines in the wrong place any help would be great
ozbowhunter is offline   Reply With Quote
Old 03-12-2014, 08:12 PM   #2
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: setting up the edelbrock

Look at the ports. Notice one is higher than the other. The lower one (driver side) is below the throttle plates. That port is constant vacuum. The other port (passenger) is above the plates. It's ported vacuum. Use the port vacuum side for timing. I'll have to check my setup on how I connected the vent line. I think used the intake port behind the carb.
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote
Old 03-13-2014, 09:07 PM   #3
raceman6135
Dino burner
 
raceman6135's Avatar
 
Join Date: Nov 2002
Location: Calgary, Alberta, Canada
Posts: 602
Re: setting up the edelbrock

Which Edelbrock did you bolt on? Did it not come with an installation instruction sheet?

This may help:

raceman6135 is offline   Reply With Quote
Old 03-13-2014, 11:06 PM   #4
ozbowhunter
Registered User
 
Join Date: Jun 2012
Location: St Augustine, florida
Posts: 147
Re: setting up the edelbrock

It's not that I didn't get instructions my concern is that I ave the vacum air on controls to the correct connection to ensure proper function the instructions do not give details on where to connect the control vacumm lines
Thanks for the diagram it all helps
ozbowhunter is offline   Reply With Quote
Old 03-15-2014, 07:54 AM   #5
cadillac_al
Registered User
 
Join Date: Oct 2013
Location: Maine
Posts: 2,382
Re: setting up the edelbrock

Usually the vacuum ball is hooked to manifold vacuum or some rear Quadrajet port. Edelbrock carbs don't have vacuum ports in the rear so just find a constant vacuum source for the vacuum ball. Most engines seem to run better with the dist hooked up to full time vacuum too.
__________________
76 Chevy K20
76 GMC K15
77 Chevy C10
77 Chevy K10
cadillac_al is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 11:24 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com