Edelbrock Help Please - 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> Hotrodding Basics
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 11-15-2005, 08:21 PM
New Member
Join Date: Feb 2004
Location: NM
Posts: 19
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Edelbrock Help Please

Ok, for all the edelbrock fans out there. This is a model 1405. It was on a chevy 305 stock motor. Had lot's of trouble getting it tuned in on that motor as I run elevations from around 3000ft to 8000ft daily. Finally got it running good with .095 jets in the front, .089 in the rear and .073X.052 metering rods.
Now it's on a new 350, edelbrock performer intake, headers and dual exhaust and runs like &**&)*)(
Edelbrock has not been able to get it right. They have made several sugestions, some of which improved it a bit and some that were in the toilet.
Currently they have me trying .098 front, .095 rear and the .073X.052 rods.
And playing with the step up springs.
Currently when I'm at the lower elevations it runs pretty rough, low RPM, cruising speeds under 45mph it keeps "cutting out" when I run the RPM's up it runs a little better. Pulling the hill and higher elevations it does the same thing unless I down shift and run the RPM's up again. In the mornings on start up and running the RPM's up a bit it is doing a little light back firing.
Any thoughts and suggestons are REALLY appreciated.
The timing is on and the idle mixture screws are set according to specs.

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 11-16-2005, 11:44 PM
Last photo:
Join Date: Dec 2004
Location: Canada
Posts: 100
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
My exerience with edelbrock carbs has been very ****ty as well. So ****ty in fact that there is a $300 1406 sitting in my basement and a 40 year old rochester 2-barrel currently sitting on my car. Its been my lesson that unless you have a dyno or some sort of oxygen sensor or some natural talent for carbs to leave them the hell alone the stock carb works perfectly well. That aside, when i was running the 1406 back and forth between calgary and edmonton on the weekends, there is about a 1200ft difference in elevation between the two cities, id tune the idle mixture in edmonton and the car would be stinking of gas and running like a dog by the time i hit calgary. Its my impression that carbs dont run very well when theres a huge altitude change like that and require constant tuning... anyone else? Oh and also my rochester is a million times less picky about how the idle mixture is set compared to that POS edelbrock carburetor...what I would do if i was in your shoes is get a qjet, or better yet find the qjet that came with the 350 originally and work with that my 2cents,
Oh and just like you i spend hours on the phone with edelbrock as they told me to buy these springs buy these acelerator pump nozzles, these rods, how about a fuel pressure regulator? holy GOD, by the time i was through i was out about $200 in 'edelbrock' accessories...thats good buisness, they never did get it right and although i appreciate the time the spent on the phone with me it didnt help and seemed sure enough they were just trying to sell me their stuff. Slapped on the old 2barrel with a $30 carb kit rebuilt at home in 2 hours and it just ran like a dream. No fuel pressure regulators, no this no that....I also didnt buy an oversize carb cause the guys at the speed shop recommended the 600cfm, but the first time on the phone i got a guy who told me i should go and buy the smaller 500cfm...wow never again, lesson learned...

Last edited by flipp121; 11-16-2005 at 11:54 PM.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-17-2005, 02:33 AM
Registered User
Join Date: Nov 2005
Location: My house:)
Posts: 12
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
If you still have the parts, and you haven't done this already. I'd start at the baseline for this model of:
Main Jet Primary .100"
Main Jet Secondary .095"
Metering Rod (Primary Only) .070" x .047"
Step-Up Spring orange (5")
Needle & Seat .0935"
Float Height 7/16"
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply

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


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
Making a Edelbrock RPM into a Edelbrock RPM Air Gap black66 Engine 12 11-30-2010 02:31 AM
How do I know if my Edelbrock Carb is leaking air? jpd37 Engine 23 01-24-2009 06:01 PM
Edelbrock Performer head #60909 Houman SS '70 Engine 4 01-20-2009 09:56 PM
Edelbrock High Riser Intake??? Byrdie Engine 5 08-04-2004 11:29 PM
edelbrock carb. still too rich! TVR383 Engine 9 09-03-2003 02:27 PM

All times are GMT -6. The time now is 05:16 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.