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

Summit Racing Carb - Installed!

  • Thread starter Thread starter 69Tool
  • Start date Start date May 17, 2010

69Tool

Member
Feb 23, 2006
34
0
7
May 17, 2010
#1
  • May 17, 2010
  • #1
Hello, a while back I asked about the Summit Racing Carb. I went ahead and purchased the 750cfm and received it about 3 weeks ago. Sorry for the delay in posting this but I went on vacation as well.

First, the carb looks great out of the box, there were no issues with the finish and the venturis as indicated in that lengthy review on another forum. I installed the carb with the provided inlet tubes. The car started right off the bat and idled very well.

However, once I let it run for a minute or two, I noticed that there was gas accumulating on the intake manifold. I re-torqued the inlet tubes and the leaking persisted. So I removed the choke horn cover and found that the gasket was not aligned and it had a bit of damage.

I contacted Summit and they shipped out a replacement gasket right away (actually sent me two) at no charge of course.

In the meantime, I re-installed the gasket in the correct position and it resolved the leak.

Again, the car idles very well and required very little tuning. The primary jets are 77 and the secondaries are 79.

After receiving the new gaskets and getting the car on the road, the response was quite impressive. I definitely noticed a better response than when I had my Holley (600 cfm vacuum secondary). Performance wise it seems to function very well.

Overall, I am very happy with the carb. It definitely provided me with what I was after, a turn-key carb with easy maintenance and good performance. If anyone has any questions, please let me know and I will do what I can to answer them.
 
5

5.0W/5.0

Member
Feb 12, 2010
129
0
16
Carson Valley, NV
May 17, 2010
#2
  • May 17, 2010
  • #2
Summit brand makes good stuff....Never have any issues with their products!
 

Crs

Member
May 7, 2004
182
0
16
San Francisco, CA
May 17, 2010
#3
  • May 17, 2010
  • #3
I just installed a 600 Summit on my 289. Mine also started right up and idles pretty smooth, but does have a rich idle. I have to drive it more to further assess the situation. Does yours have a rich idle?
 
You must log in or register to reply here.

Similar threads

Engine Random Misfire at idle.
  • Gulftown980x
  • Jul 29, 2026
  • SN95 4.6L Mustang Tech
Replies
11
Views
270
SN95 4.6L Mustang Tech Jul 31, 2026
squeak93
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
990
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
R
What's it Worth? 1997 Cobra, a ton of mods and restoration
  • riored97snake
  • Jun 18, 2026
  • What is it Worth?!?!?
Replies
2
Views
209
What is it Worth?!?!? Jun 21, 2026
riored97snake
R
M
Engine Unexplainable Exhaust Pop and Gurgle
  • Mrnissen122
  • Feb 14, 2026
  • Fox 5.0 Mustang Tech
Replies
12
Views
599
Fox 5.0 Mustang Tech Feb 18, 2026
Noobz347
A
Carb swap question
  • AA wALtZ
  • Jul 27, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
18
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 8, 2024
General karthief
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?