High altitude jetting - Ford Truck Enthusiasts Forums



High altitude jetting

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-16-2014, 09:16 AM
Turbo Dog's Avatar
Turbo Dog Turbo Dog is offline
Posting Guru
Thread Starter
 
Join Date: Sep 2012
Location: Laramie, WY
Posts: 1,853
Turbo Dog has a good reputation on FTE.Turbo Dog has a good reputation on FTE.Turbo Dog has a good reputation on FTE.
High altitude jetting

I live at 7200 ft and the truck I recently bought with a 460 was built in SoCal. It was obviously running too rich. I tore the Edelbrock 1407 750 cfm carb down this weekend and found the primary jets were .107 and the secondary were .110. I replaced the primary with a .104 and used .043x.071 rods.

I haven't had a chnace to start the engine yet and I am wondering if anyone else has set up one for high altitude use or has a manual with suggested sizes.

I put in a full rebuild kit and found the float settings to be off. the float level was too low and the float drop was also too low. Anybody ever make float level adjustments to help their performance?
Reply With Quote
  #2  
Old 06-16-2014, 09:56 AM
Turbo Dog's Avatar
Turbo Dog Turbo Dog is offline
Posting Guru
Thread Starter
 
Join Date: Sep 2012
Location: Laramie, WY
Posts: 1,853
Turbo Dog has a good reputation on FTE.Turbo Dog has a good reputation on FTE.Turbo Dog has a good reputation on FTE.
I just thought about searching for a manual...and here it is:

http://www.edelbrock.com/automotive/...ers-manual.pdf
Reply With Quote
  #3  
Old 06-16-2014, 12:34 PM
Turbo Dog's Avatar
Turbo Dog Turbo Dog is offline
Posting Guru
Thread Starter
 
Join Date: Sep 2012
Location: Laramie, WY
Posts: 1,853
Turbo Dog has a good reputation on FTE.Turbo Dog has a good reputation on FTE.Turbo Dog has a good reputation on FTE.
Looking through the manual and considering that the truck will most likely see a range form 5000 to 7000 ft I should be using a .107" jet with a .065x.047 rod. I'll swap that in before I install the carb in a few days and report back on how it worked.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
7265 LawnBoy Running Rich - ? Buehler? Tedster9 General NON-Automotive Conversation 13 06-06-2016 10:35 PM
Holley Power Valve, Selecting, Testing and Quality Argess FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 49 09-13-2009 05:51 PM
Holley 4160 Jet & Adjustment Questions sdkoz Fuel Injection, Carburetion & Fuel System 5 12-16-2004 03:30 PM
Problem Setting Float Level on Holley 390 drive_old_ride_new Fuel Injection, Carburetion & Fuel System 8 12-03-2004 02:43 PM
holley 4180c used on 86 315w, adjustment screw question??? mgm415 Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) 5 12-19-2001 05:01 AM


Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump


All times are GMT -5. The time now is 05:08 AM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.