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 07-01-2009, 01:06 AM   #1
Mike_D
Registered User
 
Join Date: Jan 2009
Location: South Bay, Ca
Posts: 36
Holley vs. Quadrajet

Its time to rebuild the Quadrajet and I now have a decision. Do I rebuild the Quadrajet or do I buy the emission legal Holley. I'm concerned that because of the smaller CFM of the Holley that the performance will drop significantly. Any opinions?

Vehicle: 1977 c20/ 350/automatic

Holley: Model 4175/650 CFM/
Quadrajet: 750 CFM/
Mike_D is offline   Reply With Quote
Old 07-01-2009, 01:09 AM   #2
BigDan3131
Registered User
 
BigDan3131's Avatar
 
Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
Re: Holley vs. Quadrajet

I would give "The Carb Shop" a call, they are in the Inland Empire. The can give you the best advice for either. Their phone number is usually in Car Craft or HotRod.
BigDan3131 is offline   Reply With Quote
Old 07-01-2009, 02:37 AM   #3
79 silverado
Account Suspended
 
Join Date: Nov 2004
Location: Rhode Island/Vermont
Posts: 583
Re: Holley vs. Quadrajet

Well, I know that there was a place out in CA called Jet Performance or something like that that specialized in rebuilding q-jets to be better than new and they would alter them to be re-jetted with different metering rods etc during a rebuild to be specific to what you were running for an engine.

Not sure what a holley goes for like that in your neck of the woods, but, I might opt for something that was redone special for your engine if the price wasnt far off.

Add to that the fact that its been observed so often that its pretty much a fact that a well functioning q-jet will get a little better gas mileage across the board historically than holleys or edels... you know, comparable carb to comparable carb, not a 390 vs a 650 or anything...

My vote is in exploring that direction anyways...
79 silverado is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 07:54 PM.


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