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

Misfiring issue

  • Thread starter Thread starter bclark009
  • Start date Start date Aug 30, 2022
  • Tags Tags
    302 misfire

bclark009

New Member
Sep 2, 2020
2
0
1
Virginia
Aug 30, 2022
#1
  • Aug 30, 2022
  • #1
I have a ‘65 coupe with a ‘91 5.0 that has an edelbrock carb and pertronix distributor and coil. It’s been running fine the last couple years from when I did the engine swap.
Recently it started getting a small random miss, and under harder acceleration it seems like Almost the entire engine is missing. (Sounds like a rev limiter except it’s at like 3k). Under normal (light) acceleration it is fine until just over 3k it gets a very small miss. But once I get on it, the whole thing faceplants and starts missing like crazy. Any ideas?
 

Mcmahst

5 Year Member
Jan 19, 2021
666
261
83
Laguna Woods CA, fort Mohave AZ
Aug 30, 2022
#2
  • Aug 30, 2022
  • #2
Have you checked the usual culprit, ignition wires, spark plugs? If so and all looks well, Sounds like a lean condition. I don’t know the type of carb you’re using, never had an Edelbrock carb, but increasing the throttle opening without fuel would give you that condition.
 
You must log in or register to reply here.

Similar threads

A
Rough idle - cylinder 1 and 6 misfire HELP
  • austindavies935
  • Jul 24, 2025
  • SN95 4.6L Mustang Tech
Replies
12
Views
636
SN95 4.6L Mustang Tech Jul 24, 2025
gkomo
G
Sputtering/misfiring below 2500rpm
  • Godless
  • Sep 14, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
5
Views
332
2005 - 2014 S-197 Mustang -General/Talk- Sep 14, 2025
gkomo
C
1967 Mustang 5.0 swapped shuddering/sputtering issues
  • Cro67
  • Sep 24, 2025
  • Fox Engine Swaparoo
Replies
3
Views
188
Fox Engine Swaparoo Sep 25, 2025
General karthief
G
Autolite 1100 idles well, bogs when accelerating 1966 200
  • Green headache
  • Oct 5, 2024
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
5
Views
518
1965 - 1973 Classic Mustangs -General/Talk- Oct 19, 2024
Green headache
G
N
Edelbrock 1405 Setup
  • nathantaylor200
  • Nov 4, 2025
  • Classic Mustang Specific Tech
Replies
3
Views
198
Classic Mustang Specific Tech Nov 5, 2025
nathantaylor200
N
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
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?