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 06-07-2004, 05:30 PM   #1
69sixpackbee
Registered User
 
Join Date: Jan 2001
Location: Sabinal, Texas
Posts: 1,706
Are The Pre-electronic Q'jets Better than The Earlier Ones?

I am thinking of putting a 1980 Q'jet from a 454 on my '72 402. Aside from adding a wire for the choke will this work well? Are these the 800 CFM units?
Thanx!
69sixpackbee is offline   Reply With Quote
Old 06-07-2004, 07:33 PM   #2
swervin ervin
You get what you pay for
 
swervin ervin's Avatar
 
Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
Yes it should work fine. No, it's not the 800 cfm unit. These came on the big inch caddies and such. It will be 750 cfm.
__________________
Mike

1985 Chevy C-10
swervin ervin is offline   Reply With Quote
Old 06-07-2004, 07:40 PM   #3
69sixpackbee
Registered User
 
Join Date: Jan 2001
Location: Sabinal, Texas
Posts: 1,706
I just won one on Ebay for 25-bones and I figure it is worth tinkering with. What mods should I make to this (if any) to enhance the performance? I am running a stock 402 with a mild cam, intake and dual exhausts.
Thanx for the help!

Last edited by 69sixpackbee; 06-07-2004 at 07:47 PM.
69sixpackbee is offline   Reply With Quote
Old 06-07-2004, 08:31 PM   #4
swervin ervin
You get what you pay for
 
swervin ervin's Avatar
 
Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
http://www.73-87.com/7387garage/drivetrain/myqjet.htm

As long as you have adjustment with the idle mixture screws, you will probably be OK with the idle discharge ports. Best mods will be the secondary hanger and rods, along with the AV spring and damper.

Believe me, a properly tuned Q-jet will put a big smile on you face when you stomp it.
__________________
Mike

1985 Chevy C-10
swervin ervin is offline   Reply With Quote
Old 06-07-2004, 09:46 PM   #5
69sixpackbee
Registered User
 
Join Date: Jan 2001
Location: Sabinal, Texas
Posts: 1,706
Thanx for the tips S-E!
69sixpackbee 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 09:11 AM.


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