Brought to you in part by:

.

Tools and Supplies at Eastwood

  Mustangsandmore Forums
  '64 1/2 to '73 -- The Classic Mustang
  Carb Help please

Post New Topic  Post A Reply
profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone! next newest topic | next oldest topic
Author Topic:   Carb Help please
Stang28965
Gearhead

Posts: 353
From: Webster New York USA
Registered: Mar 2001

posted 05-06-2001 09:28 PM     Click Here to See the Profile for Stang28965   Click Here to Email Stang28965     Edit/Delete Message   Reply w/Quote
Ok, here goes..... I have a Holley 4160, My secondary were not opening but that problem is fixed (I put the yellow spring you guys suggested in) Sometimes when my car is sitting it smokes like crazy (to much gas) It never use to do this, I went down 2 sizes from the stock jets. Could my Float be adjusted to high? ( the car will idle very nice and smooth) Also if you hit the throttle hard my car hesitates then goes like hell. I thought it was the secondary opening but I put the stiffest spring in and it still did it. Also the exhaust smell in the car is terrible, It seems like it comes through the vents. But I have an all new exhaust on it and it does not leak. Its a very annoying smell, is this just something I should deal with for having an older car? Also this engine was 100% rebuilt 2,000 miles ago. Please help ) Thanks for taking the time to read this
-Jeff
1965 Mustang Coupe
289 Bored .030over
302 Heads
420 lift Cam
H-Pipe with dynomax mufflers
8 inch rear with 3.55's
4speed trans
http://members.cardomain.com/stang65

IP: Logged

richard bohm
Gearhead

Posts: 370
From: tucson,az-luray,va
Registered: May 2001

posted 05-07-2001 04:03 AM     Click Here to See the Profile for richard bohm   Click Here to Email richard bohm     Edit/Delete Message   Reply w/Quote
ok start by making sure your idle mixture screws are adjusted properly. turn them all the way in untill they just touch the seats. do not force them down. then back them out
1 1/2 turns. start the engine and wait till the idle stabilizes. then adjust the mixture screws untill you have the best idle and higest vacuum possible. if when you turn the screws nothing happens then you have an internal leak and the carb needs to come apart. after the mixture is correct then adjust the float leval untill it is just below the leval of the sight plug. this should cure your problem.

IP: Logged

JAAZZY
Gearhead

Posts: 723
From: Bay Area, CA
Registered: Apr 2001

posted 05-07-2001 03:25 PM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote
Check the power valve. The original Holley I used to run always seemed to go through these. It would idle well when the valve was new but degrade with a little bit of time. I never completely got rid of the stumble though I got close. I eventually bought the newer style like you have but in the end I gave up and went with Holley's fuel injection.

As far as exhaust smell in the car... You should be able to seal and holes or cracks in your firewall with expanding foam and/or silicon. It worked well for me. Check the area around the steering column. That gasket is large and usually old and cracked. That one is big enough to let a lot of exhaust smell into the car. Good luck.

------------------
65 Stang - TFS SH Stage III Heads, Nash 5 speed, Fuel Injection, etc...
2001 - Z06

IP: Logged

74merc
Gearhead

Posts: 731
From: Demopolis AL
Registered: Jun 99

posted 05-07-2001 07:42 PM     Click Here to See the Profile for 74merc   Click Here to Email 74merc     Edit/Delete Message   Reply w/Quote
Holley Pro-jection?
which model?
how do you like it?

IP: Logged

JAAZZY
Gearhead

Posts: 723
From: Bay Area, CA
Registered: Apr 2001

posted 05-08-2001 11:50 AM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote

It is the original model that came out quite a few years ago. Four injectors and rated at 970cfm.

I really do like it. It made my car much more streetable. It was easy to start up and drive around without any need to warm it up. It also improved my throttle response. I wish I could give you numbers but I didn't dyno the car and I didn't do before and after 1/4 mile comparisons.

The only drawback I see is that I don't know how easy it is to modify it with larger injectors for higher horsepower applications.
The new version I believe can even be programmed with a PC.

quote:
Originally posted by 74merc:
Holley Pro-jection?
which model?
how do you like it?

------------------
65 Stang - TFS SH Stage III Heads, Nash 5 speed, Fuel Injection, etc...
2001 - Z06

IP: Logged

richard bohm
Gearhead

Posts: 370
From: tucson,az-luray,va
Registered: May 2001

posted 05-09-2001 12:05 AM     Click Here to See the Profile for richard bohm   Click Here to Email richard bohm     Edit/Delete Message   Reply w/Quote
if you decide to use the holley pro-jection
go with the pro 4di. it is digital, tuned with a laptop, and has a closed loop system so the computer can adjust the fuel flow by itself.

IP: Logged

Stang28965
Gearhead

Posts: 353
From: Webster New York USA
Registered: Mar 2001

posted 05-09-2001 06:22 AM     Click Here to See the Profile for Stang28965   Click Here to Email Stang28965     Edit/Delete Message   Reply w/Quote
Thanks for helping me out guys. I adjusted the carb and it seems to run awesome.. It use to suck, I'd take a corner fast in first and give it gas and i would have that studder and it just threw off the whole fun of taking the corner fast. Know what i mean?
thanks again

------------------

IP: Logged

74merc
Gearhead

Posts: 731
From: Demopolis AL
Registered: Jun 99

posted 05-09-2001 09:40 AM     Click Here to See the Profile for 74merc   Click Here to Email 74merc     Edit/Delete Message   Reply w/Quote
sweet
I'd like to get one of those someday...

IP: Logged

JAAZZY
Gearhead

Posts: 723
From: Bay Area, CA
Registered: Apr 2001

posted 05-09-2001 11:26 AM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote
My system is a closed loop system as well but isn't as advanced as the new 4di.

I will be tuning it on a dyno after the motor goes in. This is not too far away now. I will post my dyno results when I get them.

quote:
Originally posted by richard bohm:
if you decide to use the holley pro-jection
go with the pro 4di. it is digital, tuned with a laptop, and has a closed loop system so the computer can adjust the fuel flow by itself.

------------------
65 Stang - TFS SH Stage III Heads, Nash 5 speed, Fuel Injection, etc...
2001 - Z06

IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | Mustangsandmore Front Page

Copyright 2002, Steve LaRiviere


Ultimate Bulletin Board 5.47d

Amazon Honor System Click Here to Pay Learn More

[Where are the M&M Members From?]

[Build a free Mustangsandmore.ws Home Page!]

[About M&M][Acronym Guide][Calendar of Events][Chat Room][Classified Ads] [Links]

[Members' Photos] [M&M Mug Shots] [Technical Articles][Ford Parts Number Deciphering

[ Mustangsandmore.com Bookstore] [Advertise on Mustangsandmore.com] [Mustangsandmore.com T-Shirts]