347 stroker missing under acceleration? - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 12-16-2011, 06:15 AM   #1
Registered User
Newbie
 
Join Date: Jul 2011
Posts: 9
347 stroker missing under acceleration?

i have a 1978 mustang with a 347 stroker, it has a holley 600 cfm intake a cam and a weiand intake. i have put new plugs wires and cap on the car but it still seems to miss under acceleration. it has a new ICM. all it may need is a good tune but i have tried that and i cant gat anywhere, can anyone help me??
imported_Matt is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-16-2011, 06:20 AM   #2
Registered Member
Regular
 
Join Date: Feb 2010
Posts: 35
347 stroker missing under acceleration?

i had a Corvette that did the same thing and it was a bad plug. i would go that route first. its probably a spark issue but that depends on how old the motor and its components are. could be a valve leaking, bad lifter, gummed carb, etc.`
felippe is offline   Reply With Quote
Old 12-16-2011, 06:47 AM   #3
Registered Member
Regular
 
Join Date: Aug 2009
Posts: 40
347 stroker missing under acceleration?

only time a car misses under acceleration is because timing is out. or the carb neeeds a complete rebuild. if you have a new holley 600 then yes its timing is out wont be by much but few mins with a timing light and will be sorted.
raedford is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-16-2011, 07:36 AM   #4
Registered Member
Regular
 
Join Date: Aug 2009
Posts: 43
347 stroker missing under acceleration?

I'm with Jane...bad plug........Take a spray bottle with water and spray the headers. This will help you find the "cold" hole. Or, open the hood after dark and check for errant sparks on a running engine
bald is offline   Reply With Quote
Old 12-16-2011, 07:41 AM   #5
Registered Member
Regular
 
Join Date: Mar 2010
Posts: 20
347 stroker missing under acceleration?

Check the timing then look for a vacuum leak.
Kynlas is offline   Reply With Quote
Old 12-16-2011, 08:29 AM   #6
Registered User
Newbie
 
Join Date: Dec 2011
Posts: 2
347 stroker missing under acceleration?

Coil or plugs.....
Giollanaebhin is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



04:43 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.