Quadrajet or Holley???? - 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
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-17-2007, 10:04 PM
colincamaro's Avatar
Wish I grew up in the 60's
 
Last photo:
Join Date: Oct 2006
Location: Virginia
Posts: 40
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quadrajet or Holley????

Hello i have a 1967 camaro with a modified 2 bolt 350 producing about 350 hp give or take a few horses. I need a new carb and was wondering whether i should get a jet performance products stage 2 quadrajet or a holley street avenger 650 double pumper. Can anyone tell me the advantages/disadvantages or each? Will the holley use much more gas then the quadrajet? The car will be used mostly for driving but will be taken to the strip occasionally. If neither of these carbs are adequate can you suggest anything else? thanks for your time,
colin

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-17-2007, 11:08 PM
FiveFeezy's Avatar
Fishing poles in the hot rod!
 
Last photo:
Join Date: Mar 2004
Location: Richmond, CA
Posts: 109
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Get the Holley, or an Edelbrock. Quadrajets (aka Quadrajunks) are hell to tune. My buddy loves them, but he also loves to spend forever adjusting them.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-17-2007, 11:10 PM
Registered User
 
Join Date: Dec 2004
Location: San Jose Ca
Age: 62
Posts: 472
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Jet q-jet are very good carbs,if you give them your engine info the can makeup a carb for you setup. Holleys are good also
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-18-2007, 12:14 AM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 68
Posts: 3,300
Wiki Edits: 0

Thanks: 0
Thanked 98 Times in 87 Posts
Colin, to start with the Holley Street Avenger is not a double pumper, its a 570 or 670 (for your application) elec. choke, vacuum secondary carb, you don't want a DP for the street. The quadrajet is an xlnt carb and not "hell to tune" if you take your time and know what you're doing. Either carb will work for you IF tuned properly. Another source for quadrajets is "I Five Components" (800) 526-9952. They will build you a vehicle specific carb for around $280....but you need to know your engine specs. Don't just tell them its got around 350 hp, most guys way over estimate their engines hp. If you're looking for mileage and who isn't I'd get the q-jet.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-18-2007, 07:12 AM
302 Z28's Avatar  
Last photo:
Join Date: May 2003
Location: North Texas
Posts: 10,839
Wiki Edits: 0

Thanks: 1
Thanked 86 Times in 73 Posts
I agree with 327nut, the QJ if set up properly will outperform the Holley Street Avenger (are all single pumpers) both in fuel economy and WOT. Off idle response on the QJ is vastly superior to the Holley.

Vince
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-18-2007, 05:44 PM
Tyler
 
Join Date: Jan 2007
Location: Thunder Bay
Posts: 48
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
the smaller primarys on the q jet will give u nice crisp acceleration, and if tuned properly awesome idle and street performance. where as the holley you will lose some drivability. you may get a bit more power from the holley just because its easier to tune but if u take your time and get a detailed book, u'll be happy you chose the quad.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 04-18-2007, 05:59 PM
Rob Keller's Avatar
AKA:"SLOWRIDE66"take it easy!
 
Last wiki edit: How to post pictures on a forum
Last journal entry: 85 Suburban
Last photo:
Join Date: May 2004
Location: Central Florida U.S.A.
Age: 48
Posts: 4,297
Wiki Edits: 38

Thanks: 0
Thanked 1 Time in 1 Post
the Q jet will give you better mileage Provided you stay out of the back barrels & there is no waiting time as the Holly for the Vacuum secondaries to open.

That is MHO



R
__________________
"SlowRide66"

"Illegitimis non carborundum"
Don't let the bastards grind you down!

Crankshaft Coalition Master List of Hotrodding Forums
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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
Which carb Quadrajet or Holley? 67firebird Hotrodding Basics 24 07-14-2008 04:30 AM
Holley throttle body Kevin45 Engine 1 06-10-2005 12:46 PM
Carb comparison Demon vs Holley DTL504 Engine 12 12-29-2004 03:53 PM
MSD offroad-6, MSD 8366 Distributor, Holley 950 ECU izord Electrical 0 09-06-2004 03:16 PM
holley / quadrajet question mshellw Engine 3 04-20-2003 05:08 AM


All times are GMT -6. The time now is 01:31 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.