caburetor spacers
Thread Starter
|
Mountain Pass
Joined: Dec 2011
Posts: 143
Likes: 8
caburetor spacers
hello
i have a 390 that is mildly built... i could go into detail about the aftermarket parts but im not sure if that would help much. the problem is that the linkage from the petal the throttle is rubbing against a plate on the manifold that holds the return spring. I have a 1inch spacer already, if i removed it the problem would only get worse. Adding another spacer would fix the problem, but i know it messes with stuff a bit. What do you guys think? i have a 600cfm holley and a 390 streetmaster intake.... how much would adding a spacer affect things such as mpg, hp, and torque?
i have a 390 that is mildly built... i could go into detail about the aftermarket parts but im not sure if that would help much. the problem is that the linkage from the petal the throttle is rubbing against a plate on the manifold that holds the return spring. I have a 1inch spacer already, if i removed it the problem would only get worse. Adding another spacer would fix the problem, but i know it messes with stuff a bit. What do you guys think? i have a 600cfm holley and a 390 streetmaster intake.... how much would adding a spacer affect things such as mpg, hp, and torque?
Posting Guru
Joined: May 2010
Posts: 1,867
Likes: 3
From: Alton, MO
hello
i have a 390 that is mildly built... i could go into detail about the aftermarket parts but im not sure if that would help much. the problem is that the linkage from the petal the throttle is rubbing against a plate on the manifold that holds the return spring. I have a 1inch spacer already, if i removed it the problem would only get worse. Adding another spacer would fix the problem, but i know it messes with stuff a bit. What do you guys think? i have a 600cfm holley and a 390 streetmaster intake.... how much would adding a spacer affect things such as mpg, hp, and torque?
i have a 390 that is mildly built... i could go into detail about the aftermarket parts but im not sure if that would help much. the problem is that the linkage from the petal the throttle is rubbing against a plate on the manifold that holds the return spring. I have a 1inch spacer already, if i removed it the problem would only get worse. Adding another spacer would fix the problem, but i know it messes with stuff a bit. What do you guys think? i have a 600cfm holley and a 390 streetmaster intake.... how much would adding a spacer affect things such as mpg, hp, and torque?
Posting Guru
Joined: Jun 2007
Posts: 1,724
Likes: 1
From: Butler, IN
My '70 has a throttle pedal/cable assembly from a '79. It was a bolt in. It has a 460 with a 4 barrel. They do make aftermarket cable kick downs but you probably could get a stock kick down from a 'yard.
Lokar Performance Products: 1-877-469-7440
Lokar Performance Products: 1-877-469-7440
Posting Guru
Joined: Jun 2007
Posts: 1,724
Likes: 1
From: Butler, IN
Trying to navigate the Lokar site was a nightmare! Here is an easier site with throttle and kick down cables......Lokar Throttle Kickdowns
Trending Topics
Thread Starter
|
Mountain Pass
Joined: Dec 2011
Posts: 143
Likes: 8
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Moderator
Joined: Aug 2002
Posts: 6,104
Likes: 384
From: Southern California
I agree- especially with increasing the runner height....the taller the better in terms of throttle response & fuel/air atomization at lower rpms!!!!!
Thread Starter
|
Mountain Pass
Joined: Dec 2011
Posts: 143
Likes: 8
I have a 1 inch ported spacer, i think i will go with another 1inch but instead an open spacer to increase the height of the intake manifold. what do you guys think? should i just go with a straight 2 inch ported? also, anyone have any idea what size threads the 390 street master intake has for the carb studs? i will need to buy taller ones to fit another inch of space.
Thread Starter
|
Mountain Pass
Joined: Dec 2011
Posts: 143
Likes: 8
to late, you guys didnt answer fast enough! ordered a 1inch open alluminum spacer for 10 bucks off ebay! with two gaskets and studs, cannot beat that deal. however i have to buy taller studs, but they are cheap. Also on its way are my new plug wires, cap, and rotor 
hoping to see some performance upgrades after all the parts are in. Does anyone recommend getting spark plug wire heat protectors? my exhaust does get hot, but how much does the heat really harm the wires?
hoping to see some performance upgrades after all the parts are in. Does anyone recommend getting spark plug wire heat protectors? my exhaust does get hot, but how much does the heat really harm the wires?
Logistics Pro
Joined: Jan 2011
Posts: 4,762
Likes: 54
From: Antelope Valley ,CA
those kits normally come with studs and bolts , the Fe engines really don't need plug wire heat shields , just watch how you route the wires and zip tie them away from the headers .
Thread Starter
|
Mountain Pass
Joined: Dec 2011
Posts: 143
Likes: 8
well it does come with studs, but for a 1 inch spacer. i already have a 1 inch, im adding another one. Shoot well i just bought these ones: Carburetor Studs Nuts & Washers 3 5/16" Long Carb 65110 | eBay
They will work right?
They will work right?
Thread
Thread Starter
Forum
Replies
Last Post
Xwarrior86
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
8
Feb 26, 2019 10:32 PM
ladelld33
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
4
Aug 16, 2009 06:56 PM
zsir
Fuel Injection, Carburetion & Fuel System
3
Aug 26, 2005 05:29 PM