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1970 Ford Mustang Car shutting off

Tiny
DBUBAR
  • MEMBER
  • 1970 FORD MUSTANG
  • 7.0L
  • V8
  • RWD
  • MANUAL
  • 43,000 MILES
Hi,
I have a 351c boarded out to a 427 in my mustang. When I was driving it and slowed down the car would shut off. It did this 3 times and each time I was able to get it started but it would shut off once I slowed down or stopped. The battery is at 85% full so I know its not the battery. I do have an MSD ignition system so I'm wondering if that could be the issue. Could you give your opinion on what it might be?
Thanks
Dell
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Tuesday, June 24th, 2014 AT 9:48 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Could be a fuel problem as well. Give a complete description of what you havenot just bored out to a 427. Is carb?Injected? And look in your msd manual if you have it or online and recheck the work.
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Tuesday, June 24th, 2014 AT 12:44 PM
Tiny
DBUBAR
  • MEMBER
  • 2 POSTS
Thanks. It does have a carburetor. I did put some carb cleaner in the gas a little while ago. Could that cause the issue?
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Tuesday, June 24th, 2014 AT 1:15 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I kind of doubt it although if there is a lot of alcohol in the fuel it may. I'd lean towards more of to low an idle something like that.
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Tuesday, June 24th, 2014 AT 3:03 PM

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