Holley Carbs VS. Edelbrock Carbs. - 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 01-12-2004, 07:23 PM
Member
 
Join Date: Sep 2003
Posts: 360
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Holley Carbs VS. Edelbrock Carbs.

My main question is concerning the jet sizes. I just read that one of Holleys750 cfm Jet sizes were : Primary-73, Secondary-73.

My Edelbrock750 cfm has : Primary jet is .113, Secondary-.107.

Am I comparing apples to apples here? Notice my punctuation or the way I typed out the jet sizes ( They are both right from the book ).

If I am comparing apples to apples....then the Edelbrock has alot more push than the Holley?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-12-2004, 07:38 PM
Jmark's Avatar
Registered User
 
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 61
Posts: 4,925
Wiki Edits: 0

Thanks: 13
Thanked 47 Times in 36 Posts
Just remember that the Edelbrock has metering rods inside the jets, reducing the inside diameter of the orifice. To get an accurate compairson, you need to figure the actual surface area of the holley jet, then figure the area of the jet of the Edelbrock, MINUS the area of the rod tip.

Bigger is not better in all cases. Its all a matter of how much gas you need.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-12-2004, 07:50 PM
Member
 
Join Date: Sep 2003
Posts: 360
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That was a great reply.

Are those 2 carbs similar in performance? Is theere enough info provided?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-12-2004, 11:42 PM
MI2600's Avatar
Member# 3287
 

Last journal entry: Vortec Heads
Last photo:
Join Date: Jul 2002
Location: N. Muskegon, MI
Posts: 2,632
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I thought the stock (factory) jetting for a Holley 750/780 was 72 primary and 78 secondary. Thinking is always dangerous.

This type question has been tossed around a lot here. It boils down to personal preference. Some feel the Holley has more "tuneability". But, I like the simplicity of the Edelbrock. I've got a 780 Holley on a 383 and a 750 Edelbrock on the 406. I'm not too worried about performance at the track. I'm just a street driver.

My $.02
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



All times are GMT -6. The time now is 08:29 PM.


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.