Club Cobra Gas-N Exhaust  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Holley Tuning

MMG Superformance
Nevada Classics
MMG Superformance
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
MMG Superformance
November 2025
S M T W T F S
            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30            

Kirkham Motorsports

 
 
LinkBack Thread Tools Rating: Thread Rating: 3 votes, 5.00 average. Display Modes
Prev Previous Post   Next Post Next
  #35 (permalink)  
Old 07-17-2010, 02:20 PM
CC Member
Visit my Photo Gallery

 
Join Date: May 2009
Cobra Make, Engine:
Posts: 135
Not Ranked     
Default Got it!

Just posted this on Club Cobra:

Okay, so AED had a 3 week back log. I decided to fix it myself, one last try. I changed the idle feed restrictors, 3 different times with different sizes, no good. Just leaned out the idle and did nothing for the transition. I also played with the idle air bleeds again, throttle plate positions, etc. Nothing worked, each step made it worse.

I did have a ring out session (to vent frustration) and learned it runs perfect! at WOT. It truly is a drag race carb. So I pulled it out and cleaned it all up, put in new gaskets and put it all back to bone stock as it came from Holley. Now it is on eBay.

I bought a Street HP 4150 - 850 CFM this time, since it has bigger body (smaller plates).

OUT OF THE BOX - PERFECT!!!

I changed the power valve to 3.5 (idle vacuum is 7) and adjusted the accel pumps, floats, idle mixtures and idle speed. That's it! Done! Cruises perfectly, idles perfectly, no rich spots, no lean spots, WOT right on. I don't even feel any less response or performance from the engine.

The Holley part number is 82851.

Now, I'm going to drive it for a couple weeks to confirm, then the O2 sensor can come off and the TP go on. (maybe the reverse of that) Hopefully the TP won't cause any issues.

Last edited by pusherfans; 07-19-2010 at 08:30 AM..
Reply With Quote
 


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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 12:59 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink