Carb settings for the beginner question.
Thread Starter
|
Posting Guru
Joined: Oct 2001
Posts: 1,777
Likes: 0
From: Culpeper, Virginia
Carb settings for the beginner question.
I have a Holley 750cfm, vac sec, on my 460.
I was just cleaning up under the hood and have never really resolved my running rich problem.
I started looking at my carb and going through my Holley tech book.
Only thing I have tinkered with is my choke so far while trying to learn.
It was set all the way to the lean side.
I backed it up a couple notches towards rich, but haven't a clue to what I'm doing here?
Another question, I have a 600cfm Holley, vac sec, would that carb be better suited to my 460? It's a stock motor.
Thanks.
I was just cleaning up under the hood and have never really resolved my running rich problem.
I started looking at my carb and going through my Holley tech book.
Only thing I have tinkered with is my choke so far while trying to learn.
It was set all the way to the lean side.
I backed it up a couple notches towards rich, but haven't a clue to what I'm doing here?
Another question, I have a 600cfm Holley, vac sec, would that carb be better suited to my 460? It's a stock motor.
Thanks.
Thread Starter
|
Posting Guru
Joined: Oct 2001
Posts: 1,777
Likes: 0
From: Culpeper, Virginia
Thanks Lx.
It doesn't give me any driveability problems, would a blown valve have some issues with everyday running?
It just stays black in the venturis and the plugs look like the ones in the tech pages picture for running rich.
How can I tell what jets I have in it now? Gotta pull it off and take it apart?
Thanks.
It doesn't give me any driveability problems, would a blown valve have some issues with everyday running?
It just stays black in the venturis and the plugs look like the ones in the tech pages picture for running rich.
How can I tell what jets I have in it now? Gotta pull it off and take it apart?
Thanks.
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Yeah, you have to pull the front bowl off to look at the number on the jets.
A blown power valve will make it run overly rich, but it may still run ok.
If it is a LIST#3310-2 or 3310-3 then I believe that 72 jets are stock.
A blown power valve will make it run overly rich, but it may still run ok.
If it is a LIST#3310-2 or 3310-3 then I believe that 72 jets are stock.
Thread Starter
|
Posting Guru
Joined: Oct 2001
Posts: 1,777
Likes: 0
From: Culpeper, Virginia
Am I looking for a list # stamped into the jets in tiny print, or am I looking for the list # of the carb?
I believe it's a 4150 model. Does that help at all?
If I do indeed have 72's, what would you recommend me to step down too?
Thanks,
Blair
I believe it's a 4150 model. Does that help at all?
If I do indeed have 72's, what would you recommend me to step down too?
Thanks,
Blair
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
It is on the front right side of the choke horn. It will say LIST ????-?
The jet number will be stamped on the jets. Drop 2 number sizes if you change them. So if you have 72's, drop to 70's.
The jet number will be stamped on the jets. Drop 2 number sizes if you change them. So if you have 72's, drop to 70's.
Thread Starter
|
Posting Guru
Joined: Oct 2001
Posts: 1,777
Likes: 0
From: Culpeper, Virginia
Originally Posted by 78bigunns
I have a Holley 750cfm, vac sec, on my 460.
I started looking at my carb and going through my Holley tech book.
Only thing I have tinkered with is my choke so far while trying to learn.
It was set all the way to the lean side.
I backed it up a couple notches towards rich, but haven't a clue to what I'm doing here?
Thanks.
I started looking at my carb and going through my Holley tech book.
Only thing I have tinkered with is my choke so far while trying to learn.
It was set all the way to the lean side.
I backed it up a couple notches towards rich, but haven't a clue to what I'm doing here?
Thanks.
How about my choke? It's been in the 30's here and I been thinking I should run the choke more to the rich side.
I never used to mess with this stuff, but I'm driving the truck a bunch now and really need to fine tune this carb and it's settings.
I'm going to look at Holley stuff for jets and powervalve stuff. Should I stay with the 6.5" power valve?
Thanks,
Blair
Trending Topics
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Yeah, that power valve should be fine with a stock camshaft.
If ti starts ok when cold, then I wouldn't adjust the choke. As it gets colder, it will close tighter. If it isn't starting good, then we can work on the adjustment.
If ti starts ok when cold, then I wouldn't adjust the choke. As it gets colder, it will close tighter. If it isn't starting good, then we can work on the adjustment.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Posting Guru
Joined: Oct 2001
Posts: 1,777
Likes: 0
From: Culpeper, Virginia
It starts pretty good, but after say 10 seconds or so of idle, she starts to idle a bit rough. Nothing major, but it seems like the idle speed slows some.
Thanks,
Blair
Thanks,
Blair