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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-04-2006, 09:34 PM   #1
CAJ68
Registered User
 
Join Date: May 2005
Posts: 80
q-jet ?

I Was Looking At Carbs At The Auto Parts Store. They Showed Me One That Was Listed In Their Computer Under Champion Rochester Quadra Jet. Part # 3-87a. The Man Behind The Counter Couldnt Tell Me The Cfm. Would Any Of Yall No? The Price Was Only $145.oo
CAJ68 is offline   Reply With Quote
Old 06-05-2006, 08:32 AM   #2
68Stepbed
Registered User
 
68Stepbed's Avatar
 
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
Re: q-jet ?

Almost all Q-jets are 750, which are probably what these are. Some of the later electronic controlled carbs were 795 cfm.
__________________
Matt

68 C10 stepside, LS1/700R4, TCI Engineering suspension system
68Stepbed is offline   Reply With Quote
Old 06-05-2006, 09:34 AM   #3
pumpkin
Registered User
 
pumpkin's Avatar
 
Join Date: Apr 2006
Location: East Sooke B.C. Canada
Posts: 543
Re: q-jet ?

Q jets came in two sizes, 750 and 800. This was max cfm. GM adjusted them down from there by altering the opening of the secondary throttle and air flaps.
pumpkin is offline   Reply With Quote
Old 06-05-2006, 03:51 PM   #4
JAKES 68GMC
Aluminum slot wheels rule...
 
Join Date: Jan 2006
Location: Maine
Posts: 6,212
Re: q-jet ?

I thought most Q-jets were 625cfm for SBC's, and the 750's were for big blocks.
JAKES 68GMC 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 03:27 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com