• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

Intake manifold/ Carburetor - Selection

  • Thread starter Thread starter 66overhaul
  • Start date Start date Apr 5, 2007
6

66overhaul

New Member
Feb 22, 2007
22
0
1
Apr 5, 2007
#1
  • Apr 5, 2007
  • #1
Hi:
I have a stock 66 coupe w/ regular 289. I want to upgrade the carburetor to a 4B & add a new intake manifold. I am loking at ab Edelbrock Performer 2121 and Edelbrock 600cfm Carburetor. Does anyone have any other suggestions? What about a good place to get them?

Thanks,
Frank
 

gunmetal5.0

New Member
May 10, 2006
144
0
0
Chico, CA
Apr 5, 2007
#2
  • Apr 5, 2007
  • #2
Hey Frank. Well I have a 302 which is basically the same(289 stuff is interchangeable) and I went with a Weiand aluminum intake manifold and a Holley 600cfm double pumper. They are a great combination, affordable and streetable. I highly recommend. Have fun.
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Apr 5, 2007
#3
  • Apr 5, 2007
  • #3
I wouldn't waste money on a new 2121. It's basically a clone of the stock 4 bbl iron 289 intake which sell for $50. Or the 83-85 Aluminum stock Mustang GT unit which also sells for $50. Want a better intake? Look at these: Performer RPM or the Air Gap version, Fords own A321, C90X, Shelby Cobra high rise, Edelbrocks older F4B, or Weiand's Stealth.
 
6

66overhaul

New Member
Feb 22, 2007
22
0
1
Apr 5, 2007
#4
  • Apr 5, 2007
  • #4
Thanks for the info. I will defininetly look into those options. What about a carb? is 600 cfm the best choice?
Frank
 

gunmetal5.0

New Member
May 10, 2006
144
0
0
Chico, CA
Apr 5, 2007
#5
  • Apr 5, 2007
  • #5
gunmetal5.0 said:
Hey Frank. Well I have a 302 which is basically the same(289 stuff is interchangeable) and I went with a Weiand aluminum intake manifold and a Holley 600cfm double pumper. They are a great combination, affordable and streetable. I highly recommend. Have fun.
Click to expand...
 
6

68RCodeConv

New Member
Oct 2, 2003
345
0
0
Houston, TX
Apr 5, 2007
#6
  • Apr 5, 2007
  • #6
On a factory stock 289 you want a 500 cfm carb. A 600 cfm is a waste of time. I'm not saying that you can't get the 600 to run OK but the 500 will have better throttle response and get better gas mileage.

The 600 would be what you want if you plan to rev the motor over 5500 rpm but the stock cam and heads pretty much give up the ghost at 4500-5000. Not much point in revving them over that.
 

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Apr 5, 2007
#7
  • Apr 5, 2007
  • #7
D.Hearne said:
Performer RPM or the Air Gap version, Fords own A321, C90X, Shelby Cobra high rise, Edelbrocks older F4B, or Weiand's Stealth.
Click to expand...
wouldnt those all be too much for a "stock" 289??????
 
B

BlackGMC

New Member
Feb 6, 2007
247
1
0
Apr 5, 2007
#8
  • Apr 5, 2007
  • #8
Are you an auto or standard? If your a standard I would get I high single plane highrise if your a auto I would get dual plane High rise. I would stick with 500 cfm... You gotta marry all your componets together so they work well together, you might want to list what else has been done, gears, tranny, ignition, etc...
 

jspagna1

Member
Jan 23, 2007
53
0
6
Connecticut
Apr 5, 2007
#9
  • Apr 5, 2007
  • #9
D.Hearne said:
I wouldn't waste money on a new 2121. It's basically a clone of the stock 4 bbl iron 289 intake which sell for $50. Or the 83-85 Aluminum stock Mustang GT unit which also sells for $50. Want a better intake? Look at these: Performer RPM or the Air Gap version, Fords own A321, C90X, Shelby Cobra high rise, Edelbrocks older F4B, or Weiand's Stealth.
Click to expand...

Ditto. I would go with the Performer RPM and go with a 500-575 cfm carb. For a stock 289 a 600 DP too big.

http://www.putfile.com/jspagna1/
 
6

66bluepony

New Member
Nov 7, 2004
75
1
0
Apr 5, 2007
#10
  • Apr 5, 2007
  • #10
DP

For your useage I would stay away from the DP's. Use a vaccum sec. carb.
 

ratio411

Founding Member
Apr 21, 2002
3,870
73
109
Pensacola FL
Apr 5, 2007
#11
  • Apr 5, 2007
  • #11
570 Holley Street Avenger and Weiand Stealth intake.
Then make sure to get a decent exhaust on the car.
Preferably headers, if you don't already.

A double pumper, even a small one, is not the way to go with an auto tranny
OR
if you want to get some sort of fuel economy...

Sorry Gunmetal...
Your T5 makes your combo tolerable IMO.
And I am not knocking DPs, I am a diehard Holley DP fan myself.
Just gotta call 'em like I see 'em.
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Apr 5, 2007
#12
  • Apr 5, 2007
  • #12
iskwezm said:
wouldnt those all be too much for a "stock" 289??????
Click to expand...

Not at all. They work just as well as the Performer and stock intakes down at the bottom end but give more breathing room up top and room to grow with in future mods. Back in the 60's the F4B/C9OX/Shelby Cobra intake was a popular bolt on for 289's.
 
T

tylerrocks

New Member
Oct 13, 2005
514
0
0
Big Spring, TX
Apr 5, 2007
#13
  • Apr 5, 2007
  • #13
Listen to D. I would go with the RPM/Wieand and a Vac sec 600.
 
B

bnickel

Founding Member
Aug 21, 2002
5,640
3
77
lubbock, texas
Apr 5, 2007
#14
  • Apr 5, 2007
  • #14
F4B/C9OX/Shelby Cobra intake was a popular bolt

the A321 is basically a copy of these but has had a few updates over the years, though very minor ones.
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Apr 6, 2007
#15
  • Apr 6, 2007
  • #15
bnickel said:
F4B/C9OX/Shelby Cobra intake was a popular bolt

the A321 is basically a copy of these but has had a few updates over the years, though very minor ones.
Click to expand...
Right. I should have included it in that statement although it's a current offering. I have one on the roller 5.0 in my 89 Ranger.
 
B

bnickel

Founding Member
Aug 21, 2002
5,640
3
77
lubbock, texas
Apr 6, 2007
#16
  • Apr 6, 2007
  • #16
D.Hearne said:
Right. I should have included it in that statement although it's a current offering. I have one on the roller 5.0 in my 89 Ranger.
Click to expand...


it's a great intake. that would be my choice of any of the afore mentioned intakes other than maybe the newer cobra version that is made (i think?) by blue thunder.
 
You must log in or register to reply here.

Similar threads

351W/5.8 EFI intake manifolds fading away...
  • Ryno5150
  • Jan 13, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
504
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 7, 2026
nickyb
S
Ignition Coil SPRING COMPRESS TO TOP OF PLUG???
  • Scwhitten
  • Mar 14, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
7
Views
539
1996 - 2004 SN95 Mustang -General/Talk- Apr 9, 2025
Scwhitten
S
S
Requesting Guidance for 306 motor swap - Fuel? - SD? MAF?
  • So_Flo
  • Jul 26, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
32
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jan 4, 2026
Mcmahst
S
Engine Lower intake manifold install (I didn't use RTV around the water jackets)
  • Swhitney
  • Mar 3, 2021
  • Fox 5.0 Mustang Tech
Replies
6
Views
2K
Fox 5.0 Mustang Tech Mar 8, 2021
markinms
R
65 289 new intake and Carb. Help required!
  • Ricktheninja
  • Mar 7, 2020
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
5
Views
2K
1965 - 1973 Classic Mustangs -General/Talk- Mar 28, 2020
southcross2631
S
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?